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public interface JCoRecord
Base interface for all data containers used throughout the JCo framework.
Implementations take care of internal bookkeeping of buffers, metadata, etc.
In addition it provides a rich set of get/set methods which
allow a convenient access to the individual fields that make up
a record. Getter and setter methods support conversion of field values
which are summarized by the following table:
| Getter-Method / Datatype | JCoMetaData.TYPE_CHAR | JCoMetaData.TYPE_INT1 | JCoMetaData.TYPE_INT2 | JCoMetaData.TYPE_INT | JCoMetaData.TYPE_NUM | JCoMetaData.TYPE_BCD | JCoMetaData.TYPE_FLOAT | JCoMetaData.TYPE_BYTE | JCoMetaData.TYPE_DATE | JCoMetaData.TYPE_TIME | JCoMetaData.TYPE_STRING | JCoMetaData.TYPE_XSTRING | JCoMetaData.TYPE_DECF16 | JCoMetaData.TYPE_DECF34 | JCoMetaData.TYPE_STRUCTURE | JCoMetaData.TYPE_TABLE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| java.lang.Object getValue() | String | Integer | Integer | Integer | String | BigDecimal | Double | byte[] | Date | Date | String | byte[] | BigDecimal | BigDecimal | JCoStructure | JCoTable |
| java.lang.String getString() | String | String | String | String | String | String | String | String (hexadecimal) | String | String | String | String (hexadecimal) | String | String | String (structure name) | String (table name) |
| char getChar() | char | --- | --- | --- | --- | --- | --- | --- | --- | --- | char | --- | --- | --- | --- | --- |
| char[] getCharArray() | char[] | --- | --- | --- | char[] | --- | --- | --- | char[] | char[] | char[] | --- | --- | --- | --- | --- |
| byte getByte() | byte | byte | byte | byte | byte | --- | --- | byte | --- | --- | byte | byte | --- | --- | --- | --- |
| short getShort() | short | short | short | short | short | --- | --- | short | --- | --- | short | short | --- | --- | --- | --- |
| int getInt() | int | int | int | int | int | --- | --- | int | --- | --- | int | int | --- | --- | --- | --- |
| long getLong() | long | long | long | long | long | --- | --- | long | --- | --- | long | long | --- | --- | --- | --- |
| java.math.BigInteger getBigInteger() | BigInteger | BigInteger | BigInteger | BigInteger | BigInteger | BigInteger | --- | --- | --- | --- | BigInteger | --- | --- | --- | --- | --- |
| double getFloat() | float | float | float | float | float | float | float | --- | --- | --- | float | --- | --- | --- | --- | --- |
| double getDouble() | double | double | double | double | double | double | double | --- | --- | --- | double | --- | --- | --- | --- | --- |
| java.math.BigDecimal getBigDecimal() | BigDecimal | BigDecimal | BigDecimal | BigDecimal | BigDecimal | BigDecimal | BigDecimal | --- | --- | --- | BigDecimal | --- | BigDecimal | BigDecimal | --- | --- |
| java.util.Date getDate() | Date | --- | --- | --- | --- | --- | --- | --- | Date | Date | Date | --- | --- | --- | --- | --- |
| java.util.Date getTime() | Date | --- | --- | --- | --- | --- | --- | --- | Date | Date | Date | --- | --- | --- | --- | --- |
| byte[] getByteArray() | byte[] | --- | --- | --- | --- | --- | --- | byte[] | --- | --- | byte[] | byte[] | byte[] | byte[] | --- | --- |
| java.io.InputStream getBinaryStream() | InputStream | --- | --- | --- | --- | --- | --- | InputStream | --- | --- | InputStream | InputStream | --- | --- | --- | --- |
| java.io.Reader getCharacterStream() | Reader | --- | --- | --- | --- | --- | --- | --- | --- | --- | Reader | --- | --- | --- | --- | --- |
| com.sap.conn.jco.JCoStructure getStructure() | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | JCoStructure | --- |
| com.sap.conn.jco.JCoTable getTable() | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | JCoTable |
| Method Summary | |
|---|---|
void |
clear()
Clears the record and resets everything to its initial state. |
java.lang.Object |
clone()
Clones the record instance. |
int |
copyFrom(JCoRecord source)
Copies the matching fields from the source record into this record. |
JCoAbapObject |
getAbapObject(int index)
Returns the value of the specified field as a JCoAbapObject . |
JCoAbapObject |
getAbapObject(java.lang.String fieldName)
Returns the value of the specified field as a JCoAbapObject . |
java.math.BigDecimal |
getBigDecimal(int index)
Returns the value of the i'th field as a BigDecimal object. |
java.math.BigDecimal |
getBigDecimal(java.lang.String fieldName)
Returns the value of the i'th field as a BigDecimal object. |
java.math.BigInteger |
getBigInteger(int index)
Returns the value of the i'th field as a BigInteger object. |
java.math.BigInteger |
getBigInteger(java.lang.String fieldName)
Returns the value of the i'th field as a BigInteger object. |
java.io.InputStream |
getBinaryStream(int index)
Returns the value of the i'th field as a stream of uninterpreted bytes in form of a java.io.InputStream object. |
java.io.InputStream |
getBinaryStream(java.lang.String fieldName)
Returns the value of the named field as a stream of uninterpreted bytes in form of a java.io.InputStream object. |
byte |
getByte(int index)
Returns the value of the i'th field as a byte. |
byte |
getByte(java.lang.String fieldName)
Returns the value of the named field as a byte. |
byte[] |
getByteArray(int index)
Returns the value of the i'th field as a byte array. |
byte[] |
getByteArray(java.lang.String fieldName)
Returns the value of the named field as a byte array. |
char |
getChar(int index)
Returns the value of the i'th field as a char. |
char |
getChar(java.lang.String fieldName)
Returns the value of the named field as a char. |
java.io.Reader |
getCharacterStream(int index)
Returns the value of the i'th field as a java.io.Reader object. |
java.io.Reader |
getCharacterStream(java.lang.String fieldName)
Returns the value of the named field as a stream of characters in form of a java.io.Reader object. |
char[] |
getCharArray(int index)
Returns the value of the i'th field as a char array. |
char[] |
getCharArray(java.lang.String fieldName)
Returns the value of the named field as a char array. |
java.lang.String |
getClassNameOfValue(java.lang.String fieldName)
Returns the fully qualified name of the Java class whose instances are manufactured if the methods getValue(int index) or getValue(String fieldName) are called to retrieve a value from the field. |
java.util.Date |
getDate(int index)
Returns the value of the i'th field as a Date object. |
java.util.Date |
getDate(java.lang.String fieldName)
Returns the value of the named field as a Date object. |
double |
getDouble(int index)
Returns the value of the i'th field as a double. |
double |
getDouble(java.lang.String fieldName)
Returns the value of the named field as a double. |
int |
getFieldCount()
Returns the number of fields in this container. |
JCoFieldIterator |
getFieldIterator()
Returns a JCoFieldIterator. |
float |
getFloat(int index)
Returns the value of the i'th field as a float. |
float |
getFloat(java.lang.String fieldName)
Returns the value of the named field as a float. |
int |
getInt(int index)
Returns the value of the i'th field as an integer. |
int |
getInt(java.lang.String fieldName)
Returns the value of the named field as an integer. |
long |
getLong(int index)
Returns the value of the i'th field as a long. |
long |
getLong(java.lang.String fieldName)
Returns the value of the named field as a long. |
JCoMetaData |
getMetaData()
Returns the appropriated metadata object that was used for creation of this record. |
short |
getShort(int index)
Returns the value of the i'th field as a short. |
short |
getShort(java.lang.String fieldName)
Returns the value of the named field as a short. |
java.lang.String |
getString(int index)
Returns the value of the i'th field as a String. |
java.lang.String |
getString(java.lang.String fieldName)
Returns the value of the named field as a String object. |
JCoStructure |
getStructure(int index)
Returns the value of the i'th field as a JCoStructure. |
JCoStructure |
getStructure(java.lang.String fieldName)
Returns the value of the named field as a JCoStructure object. |
JCoTable |
getTable(int index)
Returns the value of the i'th field as a table. |
JCoTable |
getTable(java.lang.String fieldName)
Returns the value of the named field as a JCoTable object. |
java.util.Date |
getTime(int index)
Returns the value of the i'th field as a Date object. |
java.util.Date |
getTime(java.lang.String fieldName)
Returns the value of the named field as a Date object. |
java.lang.Object |
getValue(int index)
Generic method that returns the value of the i'th field as an object. |
java.lang.Object |
getValue(java.lang.String fieldName)
Returns the value of the named field as an object. |
boolean |
isInitialized(int index)
Checks whether this field has been initialized. |
boolean |
isInitialized(java.lang.String fieldName)
Checks whether this field has been initialized. |
java.util.Iterator<JCoField> |
iterator()
Returns an Iterator. |
void |
setValue(int index,
java.math.BigDecimal value)
Sets the BigDecimal as the value for the i'th field. |
void |
setValue(int index,
byte value)
Sets the byte as the value for the i'th field. |
void |
setValue(int index,
byte[] value)
Sets the byte array as the value for the i'th field. |
void |
setValue(int index,
char value)
Sets the specified character as the field's value. |
void |
setValue(int index,
char[] value)
Sets the specified character array as the field's value. |
void |
setValue(int index,
char[] value,
int from,
int length)
Sets a sequence of characters from the specified character array as the field's value. |
void |
setValue(int index,
double value)
Sets the double as the value for the i'th field. |
void |
setValue(int index,
float value)
Sets the float as the value for the i'th field. |
void |
setValue(int index,
int value)
Sets the int as the value for the i'th field. |
void |
setValue(int index,
JCoAbapObject abapObject)
Sets the value of the specified field to be the given JCoAbapObject . |
void |
setValue(int index,
JCoStructure value)
Sets the structure as the value for the i'th field. |
void |
setValue(int index,
JCoTable value)
Sets the table as the value for the i'th field. |
void |
setValue(int index,
long value)
Sets the long as the value for the i'th field. |
void |
setValue(int index,
java.lang.Object value)
Sets the object as the value for the i'th field. |
void |
setValue(int index,
short value)
Sets the short as the value for the i'th field. |
void |
setValue(int index,
java.lang.String value)
Sets the specified string as the field's value. |
void |
setValue(java.lang.String name,
java.math.BigDecimal value)
Sets the BigDecimal as the value for the named field. |
void |
setValue(java.lang.String name,
byte value)
Sets the byte as the value for the named field. |
void |
setValue(java.lang.String name,
byte[] value)
Sets the byte array as the value for the named field. |
void |
setValue(java.lang.String name,
char value)
Sets the character as the value for the named field. |
void |
setValue(java.lang.String name,
char[] value)
Sets the specified character array as the value for the named field. |
void |
setValue(java.lang.String name,
char[] value,
int from,
int length)
Sets a sequence of characters from the specified character array as the value for the named field. |
void |
setValue(java.lang.String name,
double value)
Sets the double as the value for the named field. |
void |
setValue(java.lang.String name,
float value)
Sets the float as the value for the named field. |
void |
setValue(java.lang.String name,
int value)
Sets the int as the value for the named field. |
void |
setValue(java.lang.String fieldName,
JCoAbapObject abapObject)
Sets the value of the specified field to be the given JCoAbapObject . |
void |
setValue(java.lang.String name,
JCoStructure value)
Sets the structure as the value for the named field. |
void |
setValue(java.lang.String name,
JCoTable value)
Sets the table as the value for the named field. |
void |
setValue(java.lang.String name,
long value)
Sets the long as the value for the named field. |
void |
setValue(java.lang.String name,
java.lang.Object value)
Sets the object as the value for the named field. |
void |
setValue(java.lang.String name,
short value)
Sets the short as the value for the named field. |
void |
setValue(java.lang.String name,
java.lang.String value)
Sets the string as the value for the named field. |
java.lang.String |
toXML()
Returns the whole record in XML format. |
java.lang.String |
toXML(int index)
Returns the value of the i'th field as an XML string. |
java.lang.String |
toXML(java.lang.String fieldName)
Returns the value of named field as an XML string. |
java.io.Writer |
write(int index,
java.io.Writer writer)
Writes the field specified by the index to the provided Writer. |
java.io.Writer |
write(java.lang.String fieldName,
java.io.Writer writer)
Writes the named field to the provided Writer. |
| Method Detail |
|---|
JCoMetaData getMetaData()
void clear()
java.lang.Object clone()
int copyFrom(JCoRecord source)
source
- the source record from which to copy the data
JCoRuntimeException
- if something went wrongint getFieldCount()
java.lang.Object getValue(int index)
| Field datatype | Object |
|---|---|
| JCoMetaData.TYPE_CHAR | java.lang.String |
| JCoMetaData.TYPE_INT1 | java.lang.Integer |
| JCoMetaData.TYPE_INT2 | java.lang.Integer |
| JCoMetaData.TYPE_INT | java.lang.Integer |
| JCoMetaData.TYPE_NUM | java.lang.String |
| JCoMetaData.TYPE_BCD | java.math.BigDecimal |
| JCoMetaData.TYPE_FLOAT | java.lang.Double |
| JCoMetaData.TYPE_BYTE | byte[] |
| JCoMetaData.TYPE_DATE | java.util.Date |
| JCoMetaData.TYPE_TIME | java.util.Date |
| JCoMetaData.TYPE_STRING | java.lang.String |
| JCoMetaData.TYPE_XSTRING | byte[] |
| JCoMetaData.TYPE_DECF16 | java.math.BigDecimal |
| JCoMetaData.TYPE_DECF34 | java.math.BigDecimal |
| JCoMetaData.TYPE_STRUCTURE | com.sap.conn.jco.JCoStructure |
| JCoMetaData.TYPE_TABLE | com.sap.conn.jco.JCoTable |
| JCoMetaData.TYPE_ABAPOBJECT | com.sap.conn.jco.JCoAbapObject |
index
- the field index
ConversionException
- thrown if the value could not be converted to an object
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.lang.Object getValue(java.lang.String fieldName)
| Field datatype | Object |
|---|---|
| JCoMetaData.TYPE_CHAR | java.lang.String |
| JCoMetaData.TYPE_INT1 | java.lang.Integer |
| JCoMetaData.TYPE_INT2 | java.lang.Integer |
| JCoMetaData.TYPE_INT | java.lang.Integer |
| JCoMetaData.TYPE_NUM | java.lang.String |
| JCoMetaData.TYPE_BCD | java.math.BigDecimal |
| JCoMetaData.TYPE_FLOAT | java.lang.Double |
| JCoMetaData.TYPE_BYTE | byte[] |
| JCoMetaData.TYPE_DATE | java.util.Date |
| JCoMetaData.TYPE_TIME | java.util.Date |
| JCoMetaData.TYPE_STRING | java.lang.String |
| JCoMetaData.TYPE_XSTRING | byte[] |
| JCoMetaData.TYPE_DECF16 | java.math.BigDecimal |
| JCoMetaData.TYPE_DECF34 | java.math.BigDecimal |
| JCoMetaData.TYPE_STRUCTURE | com.sap.conn.jco.JCoStructure |
| JCoMetaData.TYPE_TABLE | com.sap.conn.jco.JCoTable |
| JCoMetaData.TYPE_ABAPOBJECT | com.sap.conn.jco.JCoAbapObject |
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to an object
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.lang.String getString(int index)
Note: If the data type of the field is TYPE_CHAR, this method trims all trailing blanks from the returned string. For the data types TYPE_DATE and TYPE_TIME the returned date and time strings are formatted using the patterns "yyyy-MM-dd" and "HH:mm:ss", respectively.
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a String
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.lang.String getString(java.lang.String fieldName)
Note: If the datatype of the field is TYPE_CHAR, this method trims all trailing blanks from the returned string. For the datatypes TYPE_DATE and TYPE_TIME the returned date and time strings are formatted using the patterns "yyyy-MM-dd" and "HH:mm:ss", respectively.
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a String
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existchar getChar(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a char,
i.e. if the underlying field contained more than one character
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangechar getChar(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a char
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existchar[] getCharArray(int index)
Note: In contrast to getString(int index)
this method
does not trim trailing blanks and it does not format date and time fields
with :
or -
separator chars.
index
- the field index
ConversionException
- thrown if the value could not be converted to a char array
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangechar[] getCharArray(java.lang.String fieldName)
Note: In contrast to getString(String fieldName)
this method
does not trim trailing blanks and it does not format date and time fields
with :
or -
separator chars.
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a char array
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existbyte getByte(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a byte
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangebyte getByte(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a byte
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existbyte[] getByteArray(int index)
index
- the field index
ConversionException
- thrown if the value could not be converted to a byte array
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangebyte[] getByteArray(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a byte array
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existshort getShort(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a shortshort getShort(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a short
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existint getInt(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to an intint getInt(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to an int
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existlong getLong(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to an long
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangelong getLong(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a long
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existfloat getFloat(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a floatfloat getFloat(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a float
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existdouble getDouble(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a double
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangedouble getDouble(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a double
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.math.BigInteger getBigInteger(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a BigInteger
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.math.BigInteger getBigInteger(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a BigInteger
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.math.BigDecimal getBigDecimal(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a BigDecimal
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.math.BigDecimal getBigDecimal(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a BigDecimal
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.util.Date getDate(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a Date
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.util.Date getDate(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a Date
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.util.Date getTime(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a Date
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.util.Date getTime(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a Date
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.io.InputStream getBinaryStream(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be
converted to a java.io.InputStream
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.io.InputStream getBinaryStream(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a java.io.InputStream
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.io.Reader getCharacterStream(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a java.io.Reader
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.io.Reader getCharacterStream(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a java.io.Reader
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existJCoStructure getStructure(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a JCoStructure
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangeJCoStructure
JCoStructure getStructure(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a JCoStructure
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existJCoTable getTable(int index)
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a JCoTable
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangeJCoTable
JCoTable getTable(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a JCoTable
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existJCoAbapObject getAbapObject(int index)
JCoAbapObject
.
index
- the index of the field
JCoAbapObject
JCoAbapObject getAbapObject(java.lang.String fieldName)
JCoAbapObject
.
fieldName
- the name of the field
JCoAbapObject
java.lang.String getClassNameOfValue(java.lang.String fieldName)
fieldName
- the name of the field
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, java.lang.String value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representationvoid setValue(java.lang.String name, java.lang.String value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, char value)
value
- the value to set for the fieldindex
- the index of the field
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, char value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, char[] value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, char[] value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, char[] value, int from, int length)
value
- the array to copy the character sequence from for setting the fieldindex
- the index of the fieldfrom
- index of the first character in the char[] to copy fromlength
- the number of characters to copy
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, char[] value, int from, int length)
value
- the array to copy the character sequence from for setting the fieldname
- the name of the field to setfrom
- index of the first character in the char[] to copy fromlength
- the number of characters to copy
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, short value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, short value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, int value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, int value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, long value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, long value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, float value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, float value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, double value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, double value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, byte value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, byte value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, byte[] value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, byte[] value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, java.math.BigDecimal value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, java.math.BigDecimal value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, JCoStructure value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, JCoStructure value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, JCoTable value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, JCoTable value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existvoid setValue(int index, JCoAbapObject abapObject)
JCoAbapObject
.
index
- the index of the fieldabapObject
- the value, a JCoAbapObject
void setValue(java.lang.String fieldName, JCoAbapObject abapObject)
JCoAbapObject
.
fieldName
- the name of the fieldabapObject
- the value, a JCoAbapObject
void setValue(int index, java.lang.Object value)
value
- the value to set for the fieldindex
- the index of the field
ConversionException
- thrown if the value could not be converted to its internal representation
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangevoid setValue(java.lang.String name, java.lang.Object value)
value
- the value to set for the fieldname
- the name of the field to set
ConversionException
- thrown if the value could not be converted to its internal representation
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existboolean isInitialized(int index)
index
- of field that will be checked
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangeboolean isInitialized(java.lang.String fieldName)
fieldName
- of field that will be checked
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.lang.String toXML(int index)
Note:All documents generated here are comply strictly to the encoding scheme as described for the method toXML().
index
- the index of the field
ConversionException
- thrown if the value could not be converted to a String
java.lang.IndexOutOfBoundsException
- thrown if the index is out of rangejava.lang.String toXML(java.lang.String fieldName)
fieldName
- the name of the field
ConversionException
- thrown if the value could not be converted to a String
JCoRuntimeException
- thrown with group JCO_ERROR_FIELD_NOT_FOUND if a field with the specified name does not existjava.lang.String toXML()
Note:All documents generated here are comply strictly to the encoding scheme as described for the method toXML().
ConversionException
- thrown if the value could not be converted to a Stringjava.io.Writer write(int index, java.io.Writer writer) throws java.io.IOException
| Field datatype | Output to the Writer instance |
|---|---|
| JCoMetaData.TYPE_CHAR | char buffer without trailing spaces |
| JCoMetaData.TYPE_DATE | chars in format yyyyMMdd |
| JCoMetaData.TYPE_TIME | chars in format HHmmss |
| JCoMetaData.TYPE_NUM | char buffer |
| JCoMetaData.TYPE_STRING | string chars buffer |
| JCoMetaData.TYPE_XSTRING | hexadecimal representation of the xstring byte buffer |
| JCoMetaData.TYPE_BYTE | hexadecimal representation of the byte buffer |
| JCoMetaData.TYPE_BCD | char based representation of the number |
| JCoMetaData.TYPE_FLOAT | char based representation of the number |
| JCoMetaData.TYPE_INT | char based representation of the number |
| JCoMetaData.TYPE_INT2 | char based representation of the number |
| JCoMetaData.TYPE_INT1 | char based representation of the number |
| JCoMetaData.TYPE_DECF16 | char based representation of the number |
| JCoMetaData.TYPE_DECF34 | char based representation of the number |
| JCoMetaData.TYPE_STRUCTURE | not possible, exception will be thrown |
| JCoMetaData.TYPE_TABLE | not possible, exception will be thrown |
| JCoMetaData.TYPE_ABAPOBJECT | not possible, exception will be thrown |
index
- of the field that should be written to outwriter
- writer instance used to write
ConversionException
- if the field is complex
JCoRuntimeException
- with the key JCoException.JCO_ERROR_FIELD_NOT_FOUND if the field with the name is not available
java.io.IOException
- if writer throws IOExceptionjava.io.Writer write(java.lang.String fieldName, java.io.Writer writer) throws java.io.IOException
| Field datatype | Output to the Writer instance |
|---|---|
| JCoMetaData.TYPE_CHAR | char buffer without trailing spaces |
| JCoMetaData.TYPE_DATE | chars in format yyyyMMdd |
| JCoMetaData.TYPE_TIME | chars in format HHmmss |
| JCoMetaData.TYPE_NUM | char buffer |
| JCoMetaData.TYPE_STRING | string chars buffer |
| JCoMetaData.TYPE_XSTRING | hexadecimal representation of the xstring byte buffer |
| JCoMetaData.TYPE_BYTE | hexadecimal representation of the byte buffer |
| JCoMetaData.TYPE_BCD | char based representation of the number |
| JCoMetaData.TYPE_FLOAT | char based representation of the number |
| JCoMetaData.TYPE_INT | char based representation of the number |
| JCoMetaData.TYPE_INT2 | char based representation of the number |
| JCoMetaData.TYPE_INT1 | char based representation of the number |
| JCoMetaData.TYPE_DECF16 | char based representation of the number |
| JCoMetaData.TYPE_DECF34 | char based representation of the number |
| JCoMetaData.TYPE_STRUCTURE | not possible, exception will be thrown |
| JCoMetaData.TYPE_TABLE | not possible, exception will be thrown |
| JCoMetaData.TYPE_ABAPOBJECT | not possible, exception will be thrown |
fieldName
- name of the fieldwriter
- write that is used to write operation
ConversionException
- if the field is complex
JCoRuntimeException
- with the key JCoException.JCO_ERROR_FIELD_NOT_FOUND if the field with the name is not available
java.io.IOException
- if writer throws IOExceptionwrite(int, Writer)
java.util.Iterator<JCoField> iterator()
Note: Method remove()
is not supported.
iterator
in interface java.lang.Iterable<JCoField>
JCoFieldIterator getFieldIterator()
|
||||||||||
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Flat White
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Chapter 2 Solutions
- Suppose \(U(x,y)=4x^2+3y^2\)
Calculate \(\frac{\partial U}{\partial x}\), and \(\frac{\partial U}{\partial y}\)
\(\frac{\partial U}{\partial x}=8x\), \(\frac{\partial U}{\partial y}=6y\)
Evaluate these partial derivatives ad \(x=1\) and \(y=2\)
\(\frac{\partial U}{\partial x}\vert_{(1,2)}=8\), \(\frac{\partial U}{\partial y}\vert_{(1,2)}=12\)
Write the total differential for \(U\).
\(dU=\frac{\partial U}{\partial x}*dx + \frac{\partial U}{\partial y}*dy\) \(dU=8x*dx + 6y*dy\)
Calculate \(\frac{dy}{dx}\) for \(dU=0\); that is, what is the implied trade-off between \(x\) and \(y\) holding \(U\) constant.
\(0=8xdx + 6ydy\)
\(-8xdx = 6ydy\)
\(-\frac{4}{3}\frac{x}{y} = \frac{dy}{dx}\)A note about Markdown and Latex. If you want to align the equations at the equal sign, you need a bit more straight Latex.
$$
\begin{align}
0 & = 8xdx + 6ydy
-8xdx & = 6ydy
-\frac{4}{3}\frac{x}{y} & = \frac{dy}{dx}
\end{align}
$$
\[\begin{align}
0 & = 8xdx + 6ydy \\
-8xdx & = 6ydy \\
-\frac{4}{3}\frac{x}{y} & = \frac{dy}{dx}\\
\end{align}\]
Show \(U=16\) when \(x = 1\) and \(y = 2\).
\(U(1,2) = 4*1^2 + 3*2^2 = 4 + 12 = 16\)In what ratio must \(x\) and \(y\) change to hold \(U\) constant at 16 for movements away from \(x=1\).
\(\frac{dy}{dx}=-\frac{4}{3}*\frac{1}{2} = - \frac{2}{3}\)More generally, what is the slope of the \(U=16\) contour line for this function? What is the slope of that line?
Contour line is an ellipse.
\(16 = 4x^2 + 3y^2 \Rightarrow y = \pm \frac{2}{\sqrt 3}\sqrt{4-x^2}\)Slope
\(\frac{dy}{dx} = \frac{1}{\sqrt{3}}(4-x^2)^{-\frac{1}{2}}(-2x)\)
2.2 Suppose a firm’s total revenues depend on the amount produced \((q)\) according to the function
\[R = 70q - q^2\]
Total costs also depend on \(q\):
\[C=q^2 + 30q + 100\]
What level of output should the firm produce in order to maximize profits \((R-C)\)? What will profits be?
\[\pi = 70q - q^2-30q^2-100\]
Need to maximize profit with respect to \(q\).
\[\frac{d\pi}{dq} = 70 - 4q - 30 = 40 - q\]
Set first order condition equal to 0.
\[40 - 4q = 0\]
\[\frac{40}{4} = q\]
\[10 = q\]
Profit at \(\pi\) max
\[\pi\vert_{q=10} = 700 - 100 - 100 - 300 - 100\]
Show that the second-order conditions for a maximum are satisfied at the output level found in part (a)?
\[\frac{d^2\pi}{dq^2} = -4 < 0 \]
Second derivative is negative, so the function is concave, and therefore local optimum is a maximum.
Does the solution calculated here obey the “marginal revenue equals marginal cost” rule?
Yes. \(MR = 70 - 2q\) and \(MC = 2q + 30\).
\[MR = MC \Rightarrow 70 - 2q = 2q + 30 \Rightarrow 40 - 4q = 0\]
Which is the first order condition we solved to get our solution.
2.3 Suppose that \(f(x,y)=xy\). Find the maximum value for \(f\) if \(x\) and \(y\) are constrained to sum to 1. Solve this problem two ways: by substitution and by using the Lagrangian method.
- By substitution
Substitute \(y = 1-x\) into the objective function so that \(f(x) = x(1-x) = x - x^2\). Then maximize \(f\) with respect to \(x\).
FOC: \(1 - 2x = 0\)
\(\Rightarrow 1 = 2x\)
\(\Rightarrow \frac{1}{2} = x\)
Then \(y = 1 - \frac{1}{2} = \frac{1}{2}\)
and \(f(\frac{1}{2},\frac{1}{2}) = \frac{1}{4}\)
- By the Lagrangian Method
\[\max_{x, y, \lambda} xy + \lambda[1-x-y]\]
FOCs:
\(f_1: y - \lambda = 0\)
\(f_2: x- \lambda = 0\)
\(\lambda: 1 - x - y = 0\)
Using \(f_1\) and \(f_2\) by putting \(\lambda\) on one side and taking the ratio of the first order conditions.
\(y = \lambda\)
\(x = \lambda\)
\(\Rightarrow y = x\)
Now taking \(y = x\) and putting it into the FOC for \(\lambda\) we get
\(1 - x - x = 0 \Rightarrow \frac{1}{2} = y\) and \(\frac{1}{2} = x\) and \(\frac{1}{2} = \lambda\)
Finally, \(f(\frac{1}{2},\frac{1}{2}) = \frac{1}{4}\)
2.4 The dual problem to the one described in Problem 2.3 is
\[\textbf{minimize } x + y\] \[\textbf{subject to } xy = 0.25\]
Solve this problem using the Lagrangian technique. Then compare the value you get for the Lagrangian multiplier to the value you got in 2.3. Explain the relationship between the two solutions.
\[\min_{x, y, \lambda} x+y + \lambda[0.25 - xy]\]
FOC:
\(f_1: 1 - \lambda y = 0\)
\(f_2: 1 - \lambda x = 0\)
\(f_{\lambda}: 0.25 - xy = 0\)
Combine the first two equations as follows.
\(1 = \lambda y\)
\(1 = \lambda x\)
Take the ratio of the left hand side and the ratio of the right hand side and obtain
\(1 = \frac{y}{x}\) or \(x = y\). Then take this and substitute into the FOC of \(\lambda\).
\(0.25 = x^2\) \(\Rightarrow x = \frac{1}{2}\)
Then, since \(x = y\), \(y = \frac{1}{2}\), and taking both these results and plugging into the \(f_1\) FOC we find that \(\lambda = 2\).
Comparing this solution with the solution from 2.3 we find that \(x\) and \(y\) are the same. However, \(\lambda\) of the problem in 2.4 is \(\frac{1}{\lambda_{2.3}}\).
The intuition of this is that \(\lambda\), often referred to as the shadow value, can be understood as
\[\lambda = \frac{\text{Marginal Benefit }x_i}{\text{Marginal Cost }x_i}\] for all \(i\).
For the when two problems are ‘dual’ the marginal benefit in one becomes the marginal cost in the other.
2.5 The height of a ball that is thrown straight up with a certain force is a function of the time (t) from which it is released given by \(f(t) = -0.5gt^2 + 40t\) (Where \(g\) is a constant determined by gravity).
- How does the value of \(t\) at which the height of the ball is at a maximum depend on the parameter \(g\)?
When we maximize \(f\) with respect to \(t\), we will find that it is a function of \(g\).
\(\frac{df}{dt} = -gt + 40 = 0\)
\(t^*(g) = \frac{40}{g}\)
- Use your answer to part (a) to describe how the maximum height changes as the parameter \(g\) changes.
Plug optimal \(t\) into \(f(.)\). \(f(g) = -\frac{1}{2}g\frac{40}{g}^2 + 40\frac{40}{g} = \frac{800}{g}\).
How does the max change as \(g\) changes? Take the derivative.
\(f'(g) = -\frac{800}{g^2}\).
- By the envelope theorem, when we differentiate the value function \(f(t^*(g),g)\) with respect to \(g\), we will only get a non-zero contribution where the \(g\) directly enters the function. All contributions that come indirectly through \(t^*(g)\) are zero.
\[f(t^*(g), g) = -0.5g(t^*(g))^2 + 40(t^*(g))\]
So,
\[\begin{align*} \frac{\partial f(t^*(g), g)}{\partial g} &= -0.5(t^*(g))^2 \\ &= -0.5\left(\frac{40}{g}\right)^2 \\ &= -\frac{800}{g^2} \end{align*}\]The same as in part b.
- Using the function in levels \(f(32.1) - f(32) = \frac{800}{32.1} - \frac{800}{32} = -0.078\). However, we can also calculate it with the derivative. We found \(f'(g) = -\frac{800}{g^2}\) so \(f'(32)=-0.78\). and this is understood to be the per unit change in f as g changes. In this case we are not changing g by 1 we are changing g by 0.1. If we scale the derivative in this way, we get roughly the same answer. \(0.1*f'(32)=-0.78*0.1 = -0.078\).
2.6
A simple way to model the construction of an oil tanker is to start with a large rectangular sheet of steel that is x feet wide and 3x feet long. Now cut a smaller square that is \(t\) feet on a side out of each corner of the larger sheet and fold up and weld the sides of the steel sheet to make a tray like structure with no top.
[Figure Here]
- show that the volume of oil that can be held by this tray is given by: \(V = t(x - 2t)(3x - 2t) = 3tx^2 - 8t^2x + 4t^3\).
Since volume is height X width X length, we calculate each of these and multiply.
Length: \(3x - 2t\) Width: \(x - 2t\) height: \(t\)
So, \(v = t(x - 2t)(3x - 2t) = 3tx^2 - 8t^2x + 4t^3\)
- How should t be chosen so as to maximize \(V\) for any given value of x?
\[\max_{t} 3tx^2 - 8t^2x + 4t^3\]
FOC: \(3x^2 - 16tx + 12t^2 = 0\)
Solve with the quadratic formula for t.
\(t = \frac{16x \pm \sqrt{(-16x)^2 - 4*12*3*x^2}}{2*12}\)
\(t = x(\frac{4 \pm \sqrt{7}}{6})\)
No, there is not a value of x that maximizes volume. If you increase x, volume will increase as well.
Now that steel is constrained so that \(1,000,000 = 3x^2 - 4t^2\), we still know that \(t\) and \(x\) have to be related according to the solution in b, but the \(t\) and \(x\) are now bound to the constraint. We can visualize the solution as a guide. The constraint is an ellipse, and only the portions with positive \(t\) and \(x\) are relevant to this problem.
[Figure Here]
So, if we plug the expression for \(t\) that we found in b. into the constraint, we can solve. Note that since both \(4 \pm \sqrt{y}\) are positive we will get two solutions here.
\[1,000,000 = 3x^2 - 4\left[x\left(\frac{4 \pm \sqrt{7}}{6}\right)\right]^2\]
\[1,000,000 = x^2\left[ 3 - 4\left(\frac{4 \pm \sqrt{7}}{6} \right)\right]\]
\[\Rightarrow x = 724.08\] and plugging this into the relationship from b. \[t = 801.92\]
or…
\[\Rightarrow x = 598.02\] and plugging this into the relationship from b. \[t = 134.98\] when using the - of the \(\pm\).
However, if you plug the first into the formula for \(V\), you get a negative number; that must be a local minimum. So, the solution to the constrained problem is \(x = 598.02\) and \(t = 134.98\).
2.7 Consider the following constrained maximization problem:
\[\textbf{maximize } y = x_1 + 5\ln{x_2}\] \[\textbf{subject to } k - x_1 - x_2 = 0\]
where \(k\) is a constant.
- Show that if \(k = 10\) this problem can be solved as one involving only equality constraints.
\(k = 10 \Rightarrow\)
\[\max x_1 + 5\ln{10-x_1}\] by setting \(x_2 = 10 - x_1\).
FOC: \(1 - \frac{5}{10 - x_1} = 0\)
\(\Rightarrow x_1 = 5\) and \(x_2 = 10\)
If \(k = 4\) then the FOC becomes \(1 - \frac{5}{4 - x_1} = 0\) and this solves to \(x_1 = -1\) and \(x_2 = 5\).
If the \(x's\) must be non-negative, then \(x_1 = 0\) and the constraint defines the \(x_2\). In this case, \(x_2 = 4\).
If \(k = 20\) then the FOC becomes \(1 - \frac{5}{20 - x_1} = 0\) and the solution is \(x_1 = 15\) and \(x_2 = 5\).
2.8 Suppose a firm has a marginal cost function given by \(MC(q) = q+1\).
- What is the firm’s total cost function,? Explain why total costs are known only up to a constant of integration, which represents fixed costs.
You find total cost by integrating the marginal cost, but of course, you can only recover this up to an unknown constant. Since the portion of the total cost function that is constant is the fixed cost - by definition - this is the fixed cost.
\[\int q + 1 dq\]
- Firms produce where price, \(p\), equals \(MC(q)\). How much will the firm produce when \(p = 15\)? Now assume that the firm just breaks even. What are the fixed costs, \(FC\)?
\(15 = q + 1\) \(\Rightarrow q = 14\).
If just breaking even, then \(15*14 - (0.5q^2 + q + FC) = 0\)
\(\Rightarrow FC = 98\)
- How much will profits for this firm increase if price increases to $20?
First, \(20 = q + 1\) so \(q = 19\). Then profits are given by \(20*19 - (0.5*19^2 + 19 +98) = 82.50\).
- Show that if we continue to assume profit maximization, then this firm’s profit can be expressed solely as a function of the price it receives.
Then we may as well substitute \(q = P - 1\) from the \(P = MC(q)\) condition.
Then we have \(\pi(P) = P(P-1) - (0.5(P-1)^2 + (P-1) + 98)\)
- Show that the increase in profits from \(P=15\) to \(P=20\) can be calculated in two ways: (i) directly from the equation derived in part d; and by integrating the inverse marginal cost function \(\left[ MC^{-1}(P) = P-1\right]\).
(i). Clearly \(\pi(20) - \pi(15) = \$82.50\) yields the change in profit.
(ii). \(\int_{15}^{20} P-1dP = (0.5P^2 - P)\vert_{15}^{20} = \$82.50\)


Call or email to contact your mover now.


Single-particle properties and nuclear data
Contents
Stability of matter
Drip lines
More on "Neutron-rich nuclei":"http://iopscience.iop.org/1402-4896/2013/T152"
Motivation
FRIB limits
Motivation and aims
Mean-field picture
Mean-field picture, which potential do we opt for?
Too simple?
Motivation, better mean-fields
Aims here
Aims of this course
Back to the stability of matter questions
Back to the stability of matter questions
Recent articles on Oxygen isotopes
Do we understand the physics of dripline systems?
Masses and Binding energies
Masses and Binding energies
Masses and Binding energies
Masses and Binding energies
Liquid drop model as a simple parametrization of binding energies
Liquid drop model as a simple parametrization of binding energies
Liquid drop model as a simple parametrization of binding energies, continues
Masses and Binding energies
Masses and Binding energies
Masses and Binding energies, the code
\( Q \)-values and separation energies
\( Q \)-values and separation energies
Motivation
\( Q \)-values and separation energies
\( Q \)-values and separation energies
Separation energies and energy gaps
Separation energies for oxygen isotopes
Energy gaps for oxygen isotopes
Features to be noted
Features to be noted, continues
Radii
Radii
Definitions
Definitions
Definitions
Definitions
Definitions
Definitions
Definitions
Definitions and notations
Definitions and notations
Definitions and notations
Definitions and notations, more complicated forces
A modified Hamiltonian
A modified Hamiltonian
A modified Hamiltonian
A modified Hamiltonian
A modified Hamiltonian, harmonic oscillator spectrum
The harmonic oscillator Hamiltonian
Translationally Invariant Hamiltonian
The harmonic oscillator Hamiltonian
The harmonic oscillator Hamiltonian
The harmonic oscillator Hamiltonian
Translationally Invariant Hamiltonian
The Woods-Saxon potential
The Woods-Saxon potential
Single-particle Hamiltonians and spin-orbit force
Single-particle Hamiltonians and spin-orbit force
Single-particle Hamiltonians and spin-orbit force
Single-particle Hamiltonians and spin-orbit force
Single-particle Hamiltonians and spin-orbit force
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Numerical solution of the single-particle Schroedinger equation
Program to solve Schroedinger's equation
Program to solve Schroedinger's equation
Exercise 1: Masses and binding energies
Exercise 2: Eigenstates and eigenvalues of single-particle problems
Exercise 3: Operators and Slater determinants
Exercise 4: First simple shell-model calculation
Single-particle properties and nuclear data
Morten Hjorth-Jensen
National Superconducting Cyclotron Laboratory
and
Department of Physics and Astronomy
,
Michigan State University
, East Lansing, MI 48824, USA
Jul 4, 2017
1
2
3
4
5
6
7
8
9
10
...
86
»
© 2013-2017, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license


All Classes
Assign
Assignment
CAScheduleExtractor
Course
CourseAssistant
CourseAssistantPool
CourseInstance
CourseInstancePool
CourseScheduleExtractor
Database
GenerateAssignment
Hungarian
ScoreTable
Section
Skill
SkillSet
TableInstance
TimeInterval
UserInterface
WeeklySchedule


Let’s assume that you have installed gokrazy on a Raspberry Pi and are currently successfully updating it over the network like so:
gokr-packer \
-update=yes \
github.com/gokrazy/hello \
github.com/gokrazy/breakglass \
github.com/gokrazy/serial-busybox
To start using TLS, specify the -tls=self-signed
flag, and set -insecure
for
the first update:
gokr-packer \
-tls=self-signed \
-insecure \
-update=yes \
github.com/gokrazy/hello \
github.com/gokrazy/breakglass \
github.com/gokrazy/serial-busybox
The gokrazy packer will:
The gokrazy installation will start listening on TCP port 443 for HTTPS connections and redirect any HTTP traffic to HTTPS. When opening the gokrazy web interface in your browser, you will need to explicitly permit communication due to the self-signed certificate.
For all future updates, remove the -insecure
flag and keep the -tls=self-signed
flag:
gokr-packer \
-tls=self-signed \
-update=yes \
github.com/gokrazy/hello \
github.com/gokrazy/breakglass \
github.com/gokrazy/serial-busybox
You can now safely update your gokrazy installation over untrusted networks, such as unencrypted WiFi networks.
Just remove the -tls
flag from your gokr-packer
command line. After the next
update, gokrazy will no longer contain the certificates and will serve
unencrypted HTTP again.


Hey! I'm Nicole. I'm currently a student at Enspiral Dev Academy. This blogsite will be a compilation of my learning journey and my reflections throughout. Outside of studying, I'm a business owner. I own and run a small beauty salon in Christchurch. When I'm not working, I'm usually going to circus school (yes, theres's a school for that) and aerials training. And when I'm not doing that, I'm usually playing games. Currently playing Hitman 3.
Learn more about margin, border and padding. What their differences are and when to use them.
What my learning style is. My strengths and limitations. How I deal with frustation. What my goals and career pathway are.
Learn what is the definiton of emotional intelligence, why it is important, what is the difference between EQ and IQ and how it affects you.
Learn the basics of Javascript, what a DOM is, the difference between arrays and objects and so much more.
Read about some of my problem solving stories, what I did when I got stuck and how I solved a problem in an elegant way.
Understand what neuroplasticity is and how it affects you. Learn about growth mindset and how you can apply this when studying.
Read about what my take aways are from the core learnings and how will I be using them througout my Dev Academy journey.


Hello ProseMirror
This is editable text. You can focus it and start typing.
To apply styling, you can select a piece of text and manipulate
its styling from the menu. The basic schema
supports emphasis, strong
text, links, code
font
, and imagfes.
Block-level structure can be manipulated with key bindings (try ctrl-shift-2 to create a level 2 heading, or enter in an empty textblock to exit the parent block), or through the menu.
Try using the “list” item in the menu to wrap this paragraph in a numbered list.


Installation
1. Install ***ng2-charts*** using npm
```bash
npm install --save ng2-charts
```
2. Install ***Chart.js*** library
```bash
npm install --save chart.js
```
API
### Usage
In order to use ***ng2-charts*** you need to import `NgChartsModule`:
```typescript
import {{ '{' }} NgChartsModule } from 'ng2-charts';
// In your App's module:
imports: [
NgChartsModule
]
```
### Global configuration
When you import `NgChartsModule` you can pass a global configuration object to it:
```typescript
import {{ '{' }} NgChartsModule } from 'ng2-charts';
// In your App's module:
imports: [
NgChartsModule.forRoot({{ '{' }} defaults: {{ '{' }} ... } })
]
```
Alternatively, include a provider in your module, or one of the parent modules:
```typescript
import {{ '{' }} NgChartsModule, NgChartsConfiguration } from 'ng2-charts';
imports: [
NgChartsModule
],
providers: [
{{ '{' }} provide: NgChartsConfiguration, useValue: {{ '{' }} generateColors: false }}
]
```
### Chart types
There are one directive for all chart types: `baseChart`, and there are 8 types of charts in the default
chart.js package: [`line`](/ng2-charts/#/LineChart), [`bar`](/ng2-charts/#/BarChart),
[`radar`](/ng2-charts/#/RadarChart), [`pie`](/ng2-charts/#/PieChart),
[`polarArea`](/ng2-charts/#/PolarAreaChart), [`doughnut`](/ng2-charts/#/DoughnutChart),
[`bubble`](/ng2-charts/#/BubbleChart) and [`scatter`](/ng2-charts/#/ScatterChart).
### Properties
**Note**: For more information about possible options please refer to original
[chart.js](http://www.chartjs.org/docs) documentation
- `data` - set of points of the chart. See https://www.chartjs.org/docs/latest/general/data-structures.html
for some examples and further reference. Use this property or `datasets`/`labels` depending on what's
convenient.
- `datasets` - Same as the `datasets` property for the `data` input. `data` Has priority over this.
- `labels` - Same as the `labels` property for the `data` input. `data` has priority over this.
- `type` (`ChartType`) - indicates the type of charts. Defaults to `bar`.
- `options` (`ChartOptions`) - chart options (as from [Chart.js
documentation](http://www.chartjs.org/docs/))
- `legend`: (`boolean = false`) - if true show legend below the chart, otherwise not be shown
### Events
- `chartClick`: fires when click on a chart has occurred, returns information regarding active points and
labels
- `chartHover`: fires when mousemove (hover) on a chart has occurred, returns information regarding active
points and labels
### Chart instance
You can get access to the chart instance by using the `@ViewChild` annotation and a suitable selector for
the directive (see the Angular [docs](https://angular.io/api/core/ViewChild)). For example, to get the chart
instance and call the `toBase64Image()` method, you can add the following to the parent component:
```typescript
@ViewChild(BaseChartDirective) chart?: BaseChartDirective;
public someAction(): void {{ '{' }}
this.chart?.toBase64Image();
{{ '}' }}
```
### Colors
There are a set several default colors. If there is more data than colors, more colors are generated
randomly. Colors can be replaced using the dataset options or overriding the global defaults.
### Dynamic Theming
The `NgChartsModule` provides a service called `ThemeService` which allows clients to set a structure
specifying colors override settings. This service may be called when the dynamic theme changes, with colors
which fit the theme. The structure is interpreted as an override, so in order to reset any existing option
or customization you will have to define `undefined` properties explicitly. For example:
```typescript
type Theme = 'light-theme' | 'dark-theme';
private _selectedTheme: Theme = 'light-theme';
public get selectedTheme() {{ '{' }}
return this._selectedTheme;
}
public set selectedTheme(value) {{ '{' }}
this._selectedTheme = value;
let overrides: ChartOptions;
if (this.selectedTheme === 'dark-theme') {{ '{' }}
overrides = {{ '{' }}
scales: {{ '{' }}
x: [{{ '{' }}
ticks: {{ '{' }} fontColor: 'white' },
gridLines: {{ '{' }} color: 'rgba(255,255,255,0.1)' }
}],
y: [{{ '{' }}
ticks: {{ '{' }} fontColor: 'white' },
gridLines: {{ '{' }} color: 'rgba(255,255,255,0.1)' }
}]
}
};
} else {{ '{' }}
overrides = {{ '{' }}
scales: undefined
};
}
this.themeService.setColorschemesOptions(overrides);
}
constructor(private themeService: ThemeService) {{ '{' }} }
setCurrentTheme(theme: Theme) {{ '{' }}
this.selectedTheme = theme;
}
```
The `overrides` object has the same type as the chart options object `ChartOptions`, and wherever a simple
field is encountered it replaces the matching field in the `options` object. When an array is encountered
(as in the `xAxes` and `yAxes` fields above), the single object inside the array is used as a template to
override all array elements in the matching field in the `options` object. So in the case above, every axis
will have its ticks and gridline colors changed.
## Schematics
There are schematics that may be used to generate chart components using Angular CLI. The components are
defined in package `ng2-charts-schematics`.
### Installation of library through ng-add schematics
```bash
ng add ng2-charts
```
This schematics will add the `NgChartsModule` as an imported module in the main app module (or another
module as specified
in the `--module` command option).
### Example of Generating a Line Chart using Angular CLI
```bash
ng generate ng2-charts:line my-line-chart
```
This calls Angular's component schematics and then modifies the result, so all the options for the component
schematic
are also usable here.


{% extends "global/Page.html" %} {% load staticfiles otree_tags %} {% block title %} Year {{ year_number }} Result {% endblock %} {% block content %}
You now have {{ num_total_fish_caught }} in total.
There are now {{ num_fish_left_in_fishery }} fish left in fishery.


- user_agent
-
The user agent used by the various downloaders.
Default "Package Control v{version.number}"
- git_binary
-
Custom path(s) to git binary for when it can’t be
automatically found on the system and a package includes a
.git metadata directory. Supports more than one path to
allow users to sync settings across operating systems.
Default []
- git_update_command
-
The parameters passed to git to update a package. The remote and
branch will be automatically determined.
Default ["pull", "--ff", "--commit"]
- hg_binary
-
Custom path(s) to hg binary for when it can’t be
automatically found on the system and a package includes a
.hg metadata directory. Supports more than one path to
allow users to sync settings across operating systems.
Default []
- hg_update_command
-
The parameters to pass to hg to update a package. Will always pull
from the URL named default.
Default ["pull", "--update"]
- ignore_vcs_packages
-
If git and hg repositories should be ignored when trying to update
packages.
Default false
- downloader_precedence
-
The downloader backends that should be used for HTTP(S)
requests, split by operating system to allow for configuration
to be shared.
Valid options include: "urllib", "curl",
"wget", (Windows-only) "wininet".
This setting allows Windows users to bypass wininet and use
urllib instead if their machine or network presents trouble to
wininet. Some Mac and Linux users have also reported better
luck with certain proxies using curl or wget instead of urllib.
The "curl" and "wget" options require the
command line curl or wget program installed
and present in the PATH.
Default
{
"windows": ["wininet"],
"osx": ["urllib"],
"linux": ["urllib", "curl", "wget"]
}
- dirs_to_ignore
-
A list of folders to ignore when creating a .sublime-package
file.
Default [".hg", ".git", ".svn", "_darcs", "CVS"]
- files_to_ignore
-
A list of file glob patterns to ignore when creating a .sublime-package
file by the Create Package command.
Default [".hgignore", ".gitignore", ".bzrignore", "*.pyc", "*.sublime-project", "*.sublime-workspace", "*.tmTheme.cache"]
- files_to_include
-
A list of file glob patterns to include when creating a .sublime-package
file by the Create Package command. This overrides files_to_ignore.
Default []
- package_destination
-
The folder to copy a newly created package to. Default to the user’s
Desktop if blank. Setting this destination to the Installed
Packages directory will cause your source code changes to be
overwritten when Sublime Text restarts!
Default ""
- package_profiles
-
A way to create different packaging profiles for different types of
package releases, such as for different platforms or binary-only
releases.
The key of the object will be the profile name and a list of them will
be presenting when running the "Create Package File" command. The
profile "Default" will use the top-level version on the following
settings:
- "dirs_to_ignore"
- "files_to_ignore"
- "files_to_include"
- "package_destination"
If a profile does not include one of those three settings, it will fall
back to the top-level settings.
Default
{
"Binaries Only": {
// Exclude all .py files, but consequently include all .pyc files
"files_to_ignore": [
"*.py", ".hgignore", ".gitignore", ".bzrignore",
"*.sublime-project", "*.sublime-workspace", "*.tmTheme.cache"
],
// Include __init__.py so Sublime Text will load the package
"files_to_include": [
"__init__.py"
]
}
}
- enable_tests
-
Enable the ability to run the tests – this is only for development.
Default false


This software distribution comes with a small collection of programs for converting non-TIFF format images to TIFF and for manipulating and interogating the contents of TIFF images. Several of these tools are useful in their own right. Many of them however are more intended to serve as programming examples for using the TIFF library.
| tiffgt | Display the contents of one or more TIFF images on a Silicon Graphics system using the Silicon Graphics IRIS GL. The software makes extensive use of the TIFFRGBAImage facilities described elsewhere. |
| tiffsv | A program to save all or part of a screen dump on a Silicon Graphics system. As for tiffgt this code, while written to use the IRIS GL, can be easily tailored to other devices. |
| tiffinfo | Display information about one or more TIFF files. |
| tiffdump | Display the verbatim contents of the TIFF directory in a file (it's very useful for debugging bogus files that you may get from someone that claims they support TIFF) |
| tiffcp | Copy, concatenate, and convert TIFF images (e.g. switching from Compression=5 to Compression=1) |
| tiff2ps | Convert TIFF images to PostScript |
| tiffcmp | Compare the contents of two TIFF files (it does not check all the directory information, but does check all the data) |
| tiff2bw | A simple program to convert a color image to grayscale |
| ras2tiff | A quick hack that converts Sun rasterfile format images to TIFF -- it's less than complete |
| rgb2ycbcr | Convert an RGB, grayscale, or bilevel TIFF image to a YCbCr TIFF image; it's mainly provided for testing |
| gif2tiff | A quick hack that converts GIF 87a format images to TIFF |
| ppm2tiff | A quick hack that converts PPM format images to TIFF |
| fax2tiff | Convert raw Group 3 or Group 4 facsimile data to TIFF |
| pal2rgb | Convert a Palette-style image to a full color RGB image by applying the colormap |
| tiffdither | Dither a b&w image into a bilevel image (suitable for use in creating fax files) |
| tiffsplit | Create one or more single-image files from a (possibly) multi-image file |
| fax2ps | Convert a Group 3- or Group 4- compressed TIFF to PostScript that is significantly more compressed than is generated by tiff2ps (unless tiff2ps writes PS Level II) |
| thumbnail | Copy a bilevel TIFF to one that includes 8-bit greyscale "thumbnail images" for each page; it is provided as an example of how one might use the SubIFD tag (and the library support for it) |
| tiffmedian | A version of Paul Heckbert's median cut program that reads an RGB TIFF image, and creates a TIFF palette file as a result; it's useful for converting full-color RGB images to 8-bit color for your friends that have cheapo 8-bit framebuffers. |
| sgi2tiff | A program to convert SGI image files to TIFF. This program is only useful on SGI machines as it uses -limage. |
Check out the manual pages for details about the above programs.


=0
Click on where it says "Equation" to type in an equation. You can use + - * / ^ % () and decimals.
Supported functions: sqrt() abs() sin() cos() tan() (in degrees)
Bug: Using an expression that equals zero in parentheses and multiplying it with another parentheses or function will return 'Error'
Thanks to Google Fonts for Comfortaa, Google Search for HTML help, etc. etc.
Click on 'help' again to close
Made by Sean
Help


Kottayam (കോട്ടയം)is a district in the Indian state of Kerala.Kottayam literally means the interior of a fort—Kotta + Akam.Flanked by the Western Ghats on the east and the Vembanad Lake and paddy fields of Kuttanad on the west, Kottayam is a place that is known for extraordinary qualities.It is the district headquarters of Kottayam district, located in south-west Kerala. Kottayam is located in the basin of the Meenachil River at an average elevation of 3 metres (9.8 ft) above sea level, and has a moderate climate. It is located 150 kilometres (93 mi) north of the state capital Thiruvananthapuram.
Illikkal Kallu is a monolith located on top of the Illickal Malaa in the Kottayam district of Kerala, India.The distance from kottayam railway station to illikal kallu is 57km. Situated at around 3400 feet above sea level, Illickal Kallu is a major tourist attraction in Moonnilavu and Thalanadu village of Meenachil taluk. Only one half of the original rock remains, as the other half of the rock has fallen off. The nearest town is Teekoy. Numerous mountain streams originate from this peak and flow down to form the Meenachil River.
Read MoreKumarakom Bird Sanctuary (also known as Vembanad Bird Sanctuary) is situated at Kumarakom in Kottayam taluk of Kottayam district in the Indian state of Kerala, on the banks of Vembanad Lake.Set in the Kerala Backwaters, the bird sanctuary is a favourite haunt of migratory birds.Developed in a rubber plantation as a bird sanctuary by Englishman George Alfred Baker, the sanctuary was formerly known as Baker's Estate.
Read MoreThe Vaikom Mahadeva Temple is a temple for the Hindu god Shiva in Vaikom, Kerala. The temple, along with Ettumanoor Siva Temple, Kaduthuruthy Thaliyil Mahadeva Temple is considered a powerful trisome. The belief is that if a devotee worships at these three temples before 'Ucha pooja', all the wishes are fulfilled.The Vaikom Mahadeva temple is one of the few temples which is held in reverence by both Shaivaites and the Vaishnavaites.
Read More


First Name
Last Name
Email
Service You're Interested in:
Refineries
Mining
Plant Expansion
Truckload
Addition Information:
Submit


Class DeviceListener
Handles connection of devices. This is not the recommended approach. Please use DeviceManager where possible. Documentation href="https://docs.microsoft.com/en-us/dotnet/api/microsoft.extensions.logging.iloggerfactory"
Inheritance
System.Object
DeviceListener
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Device.Net
Assembly: Device.Net.dll
Syntax
public sealed class DeviceListener : IDeviceListener, IDisposable
Constructors
| Improve this Doc View SourceDeviceListener(IDeviceFactory, Nullable<Int32>, ILoggerFactory)
Handles connecting to and disconnecting from a set of potential devices by their definition
Declaration
public DeviceListener(IDeviceFactory deviceFactory, int? pollMilliseconds, ILoggerFactory loggerFactory)
Parameters
| Type | Name | Description |
|---|---|---|
| IDeviceFactory | deviceFactory | |
| System.Nullable<System.Int32> | pollMilliseconds | |
| Microsoft.Extensions.Logging.ILoggerFactory | loggerFactory |
Properties
| Improve this Doc View SourceDeviceFactory
Declaration
public IDeviceFactory DeviceFactory { get; }
Property Value
| Type | Description |
|---|---|
| IDeviceFactory |
Methods
| Improve this Doc View SourceCheckForDevicesAsync(CancellationToken)
Declaration
public Task CheckForDevicesAsync(CancellationToken cancellationToken = default(CancellationToken))
Parameters
| Type | Name | Description |
|---|---|---|
| System.Threading.CancellationToken | cancellationToken |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task |
Dispose()
Declaration
public void Dispose()
Start()
Starts the polling for devices if polling is being used.
Declaration
public void Start()
Stop()
Declaration
public void Stop()
Events
| Improve this Doc View SourceDeviceDisconnected
Declaration
public event EventHandler<DeviceEventArgs> DeviceDisconnected
Event Type
| Type | Description |
|---|---|
| System.EventHandler<DeviceEventArgs> |
DeviceInitialized
Declaration
public event EventHandler<DeviceEventArgs> DeviceInitialized
Event Type
| Type | Description |
|---|---|
| System.EventHandler<DeviceEventArgs> |
Implements
System.IDisposable


Psylla language
Psylla is a general purpose scriptable interpretive concatenative homoiconic
PostScript-like programming language.
The syntax of the language is based on postfix (reverse Polish) notation.
Psylla is implemented as a library written in Java.
Features
-
Dynamic arrays, strings, dictionaries, sets and streams
-
Arbitrary-precision integer arithmetic
-
Complex numbers
-
Multicontext execution (multithreading), synchronization primitives, blocking
queues
-
Namespaces
-
Regular expressions
-
REPL
-
Support for Java scripting API (JSR 223)
License
Zlib
Author
Anton Shvetz


Soubhik Chatterjee
13th Feb, 2019 11:45
It’s business success. Yes, you are correct. Let me explain. My main concern is that this project realizes the expected benefits,
as opposed to project success (i.e., completing the scope, within budget
and on-time delivery). Don’t get me wrong. My intent is to help you maintain
the triple constraint, but within the context of a business success. For
example, I will ensure that we stay within scope by using a traceability
technique and remind stakeholders that all scope additions will need to include
a dialogue on the associated time and money.


The enum package
This is header file that should be included by any applicaition making use of the enum package. It contains declarations for all the exported routines and structures.
By Shaz Qadeer
Information for programmers
Information for developers sorted by function
Information for developers sorted by file
Last updated on 1031104 18h39


As a generalist software geek in Australia/NZ, there is not a lot of choice when it comes to conferences. One advantage of the limited menu we have is that it’s relatively easy to track trends of the available conferences over time and one such trend I’m particularly interested in is how many female speakers get an opportunity to present at these conferences.
Below is the information I’ve gathered so far in all it’s empirical glory.
Disclaimer:
Gender presence is only one form of diversity to consider and the approach I’ve used is unscientific and assuming a
gender binary world, but I hope you find this information useful even with the shortcomings in my method.
Full Disclosure:
My employer, ThoughtWorks, sponsors both Agile Australia and the YOW conferences and I’ve spoken at several of these events over the years.


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decryptUrlSafe(String)
- Method in class org.jasypt.wicket15.
JasyptCrypt
Deprecated.
Decrypts a string using URL and filename safe Base64 decoding.
E
encryptUrlSafe(String)
- Method in class org.jasypt.wicket15.
JasyptCrypt
Deprecated.
Encrypts a string using URL and filename safe Base64 encoding.
J
JasyptCrypt
- Class in
org.jasypt.wicket15
Deprecated.
Deprecated in 1.9.3. This class will be removed in 2.0.0.
JasyptCrypt(PBEByteEncryptor)
- Constructor for class org.jasypt.wicket15.
JasyptCrypt
Deprecated.
Creates a new
JasyptCrypt
object, wrapping the passed encryptor.
JasyptCryptFactory
- Class in
org.jasypt.wicket15
Deprecated.
Deprecated in 1.9.3. This class will be removed in 2.0.0.
JasyptCryptFactory(PBEByteEncryptor)
- Constructor for class org.jasypt.wicket15.
JasyptCryptFactory
Deprecated.
Creates a new instance of
JasyptCryptFactory
.
N
newCrypt()
- Method in class org.jasypt.wicket15.
JasyptCryptFactory
Deprecated.
Return a new encryptor object.
O
org.jasypt.wicket15
- package org.jasypt.wicket15
S
setKey(String)
- Method in class org.jasypt.wicket15.
JasyptCrypt
Deprecated.
Important
: Using jasypt, it makes no sense to change the encryption key once the encryptor has been initialized, and so this method is implemented to throw
UnsupportedOperationException
always.
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Copyright © 2019
The JASYPT team
. All rights reserved.


SUBROUTINE DSYGVD( ITYPE, JOBZ, UPLO, N, A, LDA, B, LDB, W, WORK, $ LWORK, IWORK, LIWORK, INFO ) * * -- LAPACK driver routine (version 3.1) -- * Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. * November 2006 * * .. Scalar Arguments .. CHARACTER JOBZ, UPLO INTEGER INFO, ITYPE, LDA, LDB, LIWORK, LWORK, N * .. * .. Array Arguments .. INTEGER IWORK( * ) DOUBLE PRECISION A( LDA, * ), B( LDB, * ), W( * ), WORK( * ) * .. * * Purpose * ======= * * DSYGVD computes all the eigenvalues, and optionally, the eigenvectors * of a real generalized symmetric-definite eigenproblem, of the form * A*x=(lambda)*B*x, A*Bx=(lambda)*x, or B*A*x=(lambda)*x. Here A and * B are assumed to be symmetric and B is also positive definite. * If eigenvectors are desired, it uses a divide and conquer algorithm. * * The divide and conquer algorithm makes very mild assumptions about * floating point arithmetic. It will work on machines with a guard * digit in add/subtract, or on those binary machines without guard * digits which subtract like the Cray X-MP, Cray Y-MP, Cray C-90, or * Cray-2. It could conceivably fail on hexadecimal or decimal machines * without guard digits, but we know of none. * * Arguments * ========= * * ITYPE (input) INTEGER * Specifies the problem type to be solved: * = 1: A*x = (lambda)*B*x * = 2: A*B*x = (lambda)*x * = 3: B*A*x = (lambda)*x * * JOBZ (input) CHARACTER*1 * = 'N': Compute eigenvalues only; * = 'V': Compute eigenvalues and eigenvectors. * * UPLO (input) CHARACTER*1 * = 'U': Upper triangles of A and B are stored; * = 'L': Lower triangles of A and B are stored. * * N (input) INTEGER * The order of the matrices A and B. N >= 0. * * A (input/output) DOUBLE PRECISION array, dimension (LDA, N) * On entry, the symmetric matrix A. If UPLO = 'U', the * leading N-by-N upper triangular part of A contains the * upper triangular part of the matrix A. If UPLO = 'L', * the leading N-by-N lower triangular part of A contains * the lower triangular part of the matrix A. * * On exit, if JOBZ = 'V', then if INFO = 0, A contains the * matrix Z of eigenvectors. The eigenvectors are normalized * as follows: * if ITYPE = 1 or 2, Z**T*B*Z = I; * if ITYPE = 3, Z**T*inv(B)*Z = I. * If JOBZ = 'N', then on exit the upper triangle (if UPLO='U') * or the lower triangle (if UPLO='L') of A, including the * diagonal, is destroyed. * * LDA (input) INTEGER * The leading dimension of the array A. LDA >= max(1,N). * * B (input/output) DOUBLE PRECISION array, dimension (LDB, N) * On entry, the symmetric matrix B. If UPLO = 'U', the * leading N-by-N upper triangular part of B contains the * upper triangular part of the matrix B. If UPLO = 'L', * the leading N-by-N lower triangular part of B contains * the lower triangular part of the matrix B. * * On exit, if INFO <= N, the part of B containing the matrix is * overwritten by the triangular factor U or L from the Cholesky * factorization B = U**T*U or B = L*L**T. * * LDB (input) INTEGER * The leading dimension of the array B. LDB >= max(1,N). * * W (output) DOUBLE PRECISION array, dimension (N) * If INFO = 0, the eigenvalues in ascending order. * * WORK (workspace/output) DOUBLE PRECISION array, dimension (MAX(1,LWORK)) * On exit, if INFO = 0, WORK(1) returns the optimal LWORK. * * LWORK (input) INTEGER * The dimension of the array WORK. * If N <= 1, LWORK >= 1. * If JOBZ = 'N' and N > 1, LWORK >= 2*N+1. * If JOBZ = 'V' and N > 1, LWORK >= 1 + 6*N + 2*N**2. * * If LWORK = -1, then a workspace query is assumed; the routine * only calculates the optimal sizes of the WORK and IWORK * arrays, returns these values as the first entries of the WORK * and IWORK arrays, and no error message related to LWORK or * LIWORK is issued by XERBLA. * * IWORK (workspace/output) INTEGER array, dimension (MAX(1,LIWORK)) * On exit, if INFO = 0, IWORK(1) returns the optimal LIWORK. * * LIWORK (input) INTEGER * The dimension of the array IWORK. * If N <= 1, LIWORK >= 1. * If JOBZ = 'N' and N > 1, LIWORK >= 1. * If JOBZ = 'V' and N > 1, LIWORK >= 3 + 5*N. * * If LIWORK = -1, then a workspace query is assumed; the * routine only calculates the optimal sizes of the WORK and * IWORK arrays, returns these values as the first entries of * the WORK and IWORK arrays, and no error message related to * LWORK or LIWORK is issued by XERBLA. * * INFO (output) INTEGER * = 0: successful exit * < 0: if INFO = -i, the i-th argument had an illegal value * > 0: DPOTRF or DSYEVD returned an error code: * <= N: if INFO = i and JOBZ = 'N', then the algorithm * failed to converge; i off-diagonal elements of an * intermediate tridiagonal form did not converge to * zero; * if INFO = i and JOBZ = 'V', then the algorithm * failed to compute an eigenvalue while working on * the submatrix lying in rows and columns INFO/(N+1) * through mod(INFO,N+1); * > N: if INFO = N + i, for 1 <= i <= N, then the leading * minor of order i of B is not positive definite. * The factorization of B could not be completed and * no eigenvalues or eigenvectors were computed. * * Further Details * =============== * * Based on contributions by * Mark Fahey, Department of Mathematics, Univ. of Kentucky, USA * * Modified so that no backsubstitution is performed if DSYEVD fails to * converge (NEIG in old code could be greater than N causing out of * bounds reference to A - reported by Ralf Meyer). Also corrected the * description of INFO and the test on ITYPE. Sven, 16 Feb 05. * ===================================================================== * * .. Parameters .. DOUBLE PRECISION ONE PARAMETER ( ONE = 1.0D+0 ) * .. * .. Local Scalars .. LOGICAL LQUERY, UPPER, WANTZ CHARACTER TRANS INTEGER LIOPT, LIWMIN, LOPT, LWMIN * .. * .. External Functions .. LOGICAL LSAME EXTERNAL LSAME * .. * .. External Subroutines .. EXTERNAL DPOTRF, DSYEVD, DSYGST, DTRMM, DTRSM, XERBLA * .. * .. Intrinsic Functions .. INTRINSIC DBLE, MAX * .. * .. Executable Statements .. * * Test the input parameters. * WANTZ = LSAME( JOBZ, 'V' ) UPPER = LSAME( UPLO, 'U' ) LQUERY = ( LWORK.EQ.-1 .OR. LIWORK.EQ.-1 ) * INFO = 0 IF( N.LE.1 ) THEN LIWMIN = 1 LWMIN = 1 ELSE IF( WANTZ ) THEN LIWMIN = 3 + 5*N LWMIN = 1 + 6*N + 2*N**2 ELSE LIWMIN = 1 LWMIN = 2*N + 1 END IF LOPT = LWMIN LIOPT = LIWMIN IF( ITYPE.LT.1 .OR. ITYPE.GT.3 ) THEN INFO = -1 ELSE IF( .NOT.( WANTZ .OR. LSAME( JOBZ, 'N' ) ) ) THEN INFO = -2 ELSE IF( .NOT.( UPPER .OR. LSAME( UPLO, 'L' ) ) ) THEN INFO = -3 ELSE IF( N.LT.0 ) THEN INFO = -4 ELSE IF( LDA.LT.MAX( 1, N ) ) THEN INFO = -6 ELSE IF( LDB.LT.MAX( 1, N ) ) THEN INFO = -8 END IF * IF( INFO.EQ.0 ) THEN WORK( 1 ) = LOPT IWORK( 1 ) = LIOPT * IF( LWORK.LT.LWMIN .AND. .NOT.LQUERY ) THEN INFO = -11 ELSE IF( LIWORK.LT.LIWMIN .AND. .NOT.LQUERY ) THEN INFO = -13 END IF END IF * IF( INFO.NE.0 ) THEN CALL XERBLA( 'DSYGVD', -INFO ) RETURN ELSE IF( LQUERY ) THEN RETURN END IF * * Quick return if possible * IF( N.EQ.0 ) $ RETURN * * Form a Cholesky factorization of B. * CALL DPOTRF( UPLO, N, B, LDB, INFO ) IF( INFO.NE.0 ) THEN INFO = N + INFO RETURN END IF * * Transform problem to standard eigenvalue problem and solve. * CALL DSYGST( ITYPE, UPLO, N, A, LDA, B, LDB, INFO ) CALL DSYEVD( JOBZ, UPLO, N, A, LDA, W, WORK, LWORK, IWORK, LIWORK, $ INFO ) LOPT = MAX( DBLE( LOPT ), DBLE( WORK( 1 ) ) ) LIOPT = MAX( DBLE( LIOPT ), DBLE( IWORK( 1 ) ) ) * IF( WANTZ .AND. INFO.EQ.0 ) THEN * * Backtransform eigenvectors to the original problem. * IF( ITYPE.EQ.1 .OR. ITYPE.EQ.2 ) THEN * * For A*x=(lambda)*B*x and A*B*x=(lambda)*x; * backtransform eigenvectors: x = inv(L)'*y or inv(U)*y * IF( UPPER ) THEN TRANS = 'N' ELSE TRANS = 'T' END IF * CALL DTRSM( 'Left', UPLO, TRANS, 'Non-unit', N, N, ONE, $ B, LDB, A, LDA ) * ELSE IF( ITYPE.EQ.3 ) THEN * * For B*A*x=(lambda)*x; * backtransform eigenvectors: x = L*y or U'*y * IF( UPPER ) THEN TRANS = 'T' ELSE TRANS = 'N' END IF * CALL DTRMM( 'Left', UPLO, TRANS, 'Non-unit', N, N, ONE, $ B, LDB, A, LDA ) END IF END IF * WORK( 1 ) = LOPT IWORK( 1 ) = LIOPT * RETURN * * End of DSYGVD * END


It was grade 9 for me, and I had become increasingly more curious about how certain drugs worked, especially mushrooms. I had a few friends who I had grown up with but sort of lost contact with when we entered high school, and I had just started to become friends with them again. They started to tell me that they had done quite a few drugs including weed, ecstasy, ketamine, and mushrooms, and wondered if I would like to try any. I thought about it, and I had already smoked pot before, so I thought I would stick with the organic drugs, seeing as how I thought they were safer.
I asked these friends how much it would be to trip on shrooms once, and they started getting into talk of grams and how much each gram would be. They told me they would get me 2 grams for $15, and that was enough for one trip. I thought that 15 bucks for several hours of what I expected to be 'crazy' colors swirling around me, so I made the purchase. I arranged to do it the following weekend, when my parents were leaving to go to a cottage for 3 days. This seemed perfect. I would have them come over, we would all take something and just chill for the night, and do whatever we want.
The night before, they called me up asking if I wanted to but an extra 2 grams for 10 more dollars, and I agreed. So the next night, around 7, the 3 people came over, all girls, leaving me the only guy, and they handed me the shrooms. I studied them for a few minutes. They were broken up and in some sort of dust, which they told me was just shroom pieces they were grated. One of the girls took me to the kitchen, where she divided the shrooms in 2 piles, one pile was 1.5 grams, the other was 2 grams. She said that I would take 1.5 grams now, and if it didn't start working in an hour, iIwould take the rest. I didn't argue with that.
She made me a peanut butter sandwich and carefully laid out the first dose of shrooms. She warned me how bad it will taste and that I would need alot of liquids to wash it down and get the taste away. I ate the sandwich, which didn't taste that bad, but it was unpleasant biting into the dried shrooms which felt rock hard. I finished the sandwich at 8:30, and we went out back so the girls could have a smoke. We all smoked some pot, and stayed out and talked. It was about 9:15 when one of the girls told me since I didn't notice any difference, I should take the rest, so I had another sandwich.
I asked if they were taking anything, and they said they didn't have anything to take. By about 9:30, I was looking at the floor in my basement, and I started to see shadows that looked like they were being sucked into the ground in a whirlpool. I thought this was quite great. A few minutes later the whirlpools were gone, and replaced with what I can only describe as hyroglyphs. They seemed to rise from the carpet, and float up, leaving trails behind. The hryoglyphs then started to move together to make one large shape which looked like a negative photo of 2 dogs. I thought that was really strange. The girls said that we should go on a walk, and that would really get the shrooms working, so we got up and left.
Just as we left the house, one of the girls pointed out a small child on a bike, which seemed so hilarious to me a the time. I was laughing out of control. We walked up to a local conveinience store, and the proceded to a nearby forest. The woodchips on the ground seemed to shine baby blue at me, and the rest of the forest looked very dark. As I looked at the ground, I noticed the white parts of my clothes looked like they do when white is placed under black light. I also started to loose my balance at this point.
We stoped at one of the girls houses so she could pick some stuff up. I waited outside with the others, and that was when I really started to hallucinate. The street lamps all glowed different colors. We started walking back to my house and every street lamp we passed was a differnt color to me; red, green, yellow, blue. It was really amzing. the grass all was a deep red. We stopped around the corner of my house and the girls sat in a shopping cart they found and layed on the grass while I paced back and forth staring at the sky.
I guess this was the peak of the trip, as the sky was green, and foggy. There were 4 trees in front of me, one appeared red, another yellow and one was blue.  As I walked, the street lamp would move behind the tree, and as it did, the tree would change color from white, to red, to blue, untill it seemed to flash white,red and blue all at the same time. Then the girls and I went back to the house. I stood at the door with my key in my hand, but I was unable to fit the key in the door. I had to ask one of the girls to open it for me.
We went inside and watched some show of T.V. The people's faces on the show all seemed to morph and sway with different colors, mostly green now. Around 10:30, my parents called, and we all froze. I didnt think I was capable of talking to them now, so I told everyone to let it ring. A few minutes later, they called again. One girl told me to answer it and say I was in the shower and try to make the conversation with my parents as short as possible. I did as she said, and managed to fool my parents.
The next stage of my trip was a bit uncomfortable. I sat back down to watch the show, and started to fell as if my chest were caving in and I felt like I had no energy to move. This was very short, and soon I felt fine. At around 11:15 my friends had to be picked up, so we waited in the kitchen for awhile. I thought I was coming back down, and I was sad because I didn't want it to end, but also relieved because I had many things to do before I went to bed, and I needed to remember everything so my parents wouldn't find out. I had to wash my clothes so the weed smell was gone, I had to clean the house so it appeared only I had been home, and I had to close all the windows and doors.
I did all this quite quickly, and as I did, I felt very strange. Thoughts were screaming into my head to move faster, and try to remember everything. I did, so I was happy, and I went to bed. It was now midnight, and I felt a bit scared, because the shrooms seemed to be working again, and the colors had returned, and I had started to see things morph again. In the dark, it didn't look like much, but it freaked me out because it looked like things or people were moving around my room. So I turned the hall light on, and tried to go to sleep. I found it very difficult to try to go to sleep, and I felt very restless. I started tossing and turning. I eventually started talking to myself, and I felt like a genius.
I started explaining every aspect of society and media out loud for hours, feeling as if I had had a major discovery. I felt as if I had figured out how the world really works, and how people really are. I was still seeing colors and morphing, and it was about 2:00 a.m. I closed my eyes and thought about something red, and when I opened my eyes, everything looked red to me. So I thought of something blue, and to my amazement, everything looked blue. It seems that what ever color I thought of, everything I saw turned that color. I did this for about 20 minutes, and that was when I checked my eyes to see my pupils. One of the girls had told me earlier that they were 'geckoed' meaning the pupils were huge, and I had looked in the mirror to find out for myslef.  I was finally able to sleep at about 2:30 a.m.
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


I loved watching this video. I am a visual learner and seeing such good teaching in practice was very helpful for me. I do like the idea of getting students to challenge others thinking. I am going... VIEW MORE
I loved watching this video. I am a visual learner and seeing such good teaching in practice was very helpful for me. I do like the idea of getting students to challenge others thinking. I am going... VIEW MORE
I loved watching this video. I am a visual learner and seeing such good teaching in practice was very helpful for me. I do like the idea of getting students to challenge each others thinking. I am going...
I loved watching this video. I am a visual learner and seeing...
I loved watching this video. I am a visual learner and seeing such good teaching in practice was very helpful for me. I do like the idea of getting students to challenge each others thinking. I am going...
I loved watching this video. I am a visual learner and seeing...
I loved watching this video. I am a visual learner and seeing such good teaching in practice was very helpful for me. I do like the idea of getting students to challenge each others thinking. I am going...
I loved watching this video. I am a visual learner and seeing...