If you’ve never used it before, Preview.app has an amazing ability to pull a signature from the trackpad on your Mac or from the video feed of your FaceTime camera. The feature is located under the menu Tools -> Annotate -> Signature.
The capture experience is pretty magical, second only to (in my opinion) iTunes using your camera to capture your iTunes gift card codes.
Once it has your signature stored, you can then use the same menu to place your signature into electronic documents like PDFs as transparent image overlays, allowing you to “sign” them.
Now that you’ve stored your signature in your computer, one would hope that Apple spent some time protecting others from accessing it.
Fortunately they did.
In OS X 10.9 Mavericks, when you create a signature, two primary pieces of data are configured.
In the user’s login.keychain, an application password keychain item called “Preview Signature Privacy” is created, with the following notes:
* (yes, I know this is a 10.10 screenshot - it’s prettier this way)
The password contents of this keychain item are a hexadecimal string, representing 16 raw bytes of information.
The second item that’s created is an application preference in the domain com.apple.Preview.signatures for the key “items-1”, which contains an array of data objects. The backend storage for this domain is located in the user’s application containers at:
~/Library/Containers/com.apple.Preview/Data/Library/Preferences/com.apple.Preview.signatures.plist
If you didn’t know me already, I’ll just warn you now that my code here will be in python. Since we’re going to be working a lot with plists, let’s get a few helper functions defined.
This has an advantage over the plistlib module included with python in that it can support binary plists as well as just XML.
Next, let’s read the com.apple.Preview.signatures preference for the key “item-1”.
Never. Ever. Read. Preferences. From. Plist. Files. Directly.
(… Unless you want to.  Go for it if you really want to. But Apple hates you for it.)
However - following my own advice is a little tricky here! The location of the preference is stored on-disk within ~/Library/Containers, indicating this is a sandboxed application preference and isn’t normally meant to be accessed by other apps outside of Preview.app itself.
… But OS X will still let you read the preference, if you provide the full path to it.
The contents of the array is a data object, which if you try to look at it directly, you just see the hex encoding of it.
But if you look at the first few characters in it, you might see something recognizable:
>>> str(first_sig)[:50]
'bplist00\xd4\x01\x02\x03\x04\x05\x06\x1e\x1fX$versionX$objectsY$archiverT$top'
The first few characters “bplist00” are an indicator that the contents of the array are binary plists themselves. So let’s unpack it.
>>> sig_plist
{
"$archiver" = NSKeyedArchiver;
"$objects" = (
"$null",
{
[...]
Now we’ve got something new - an NSKeyedArchiver object. This is a way for OS X (and iOS) to store data objects in a file-friendly format.
So we need to decode the object. Let’s try!
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
objc.error: NSInvalidUnarchiveOperationException - *** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (PVSignature)
Whoops. Looks like OS X doesn’t know how to natively handle a “PVSignature” file - so where do we learn about it?
We’ll need to compare two different pieces of information: what’s stored in the NSKeyedArchiver object and what exactly is a PVSignature object?
For the PVSignature structure, we’ll need the help of a great tool: class-dump
It can dump the signature of Objective-C objects defined within applications and frameworks (… hopefully PVSignature is within Preview.app itself!)
class-dump -H /Applications/Preview.app/Contents/MacOS/Preview
Yay, our output includes a “PVSignature.h” file.
Let’s see what’s inside:
Now let’s compare that against what’s actually stored in the encoded object.
When storing a single object, NSKeyedArchiver object stores the object attributes in the 2nd item of the “$objects” key:
>>> sig_plist['$objects'][1]
{
"$class" = "<CFKeyedArchiverUID 0x7fd3ada65f80 [0x7fff7951bed0]>{value = 4}";
data = "<CFKeyedArchiverUID 0x7fd3ada98480 [0x7fff7951bed0]>{value = 2}";
uid = 1000;
}
So it looks like we have a “data” and “uid” values only, unlike everything listed above.
Enter my next favorite tool: Hopper (a reverser’s best friend!)
With Hopper, we’ll read the executable to disassemble located at: /Applications/Preview.app/Contents/MacOS/Preview
Once loaded up, we’re going to look under “Labels” for PVSignature initWithCoder (the method that’s called when unarchiving an instance of a class).
Once we find it, we can use Window -> Show Psuedo Code of Procedure
[...]
rbx->_undecryptedData = [[r14 decodeObjectForKey:@"data"] retain];
rbx->_uid = [r14 decodeInt32ForKey:@"uid"];
rbx->_cannotDecrypt = 0x0;
rbx->_shouldPersist = 0x1;
rbx->_largeThumbnail = 0x0;
rbx->_smallThumbnail = 0x0;
rbx->_payload = 0x0;
[...]
Pretty staight forward to immitate:
Yay, no errors! Let’s see what our object looks like:
>>> sig_decoded._uid
1000
>>> sig_decoded._undecryptedData
<458e1def 5434c5ab 94094049 dfd2424d 0ebe7ff6 c79c7b82 463d6d56 ...
Cool. Let’s try the trick we did before for checking out if the raw data is anything we recognize:
>>> str(sig_decoded._undecryptedData)[:50]
'E\x8e\x1d\xefT4\xc5\xab\x94\t@I\xdf\xd2BM\x0e\xbe\x7f\xf6\xc7\x9c{\x82F=mV\xac\xee\x1c\xda8\xe357|\xbb\xa9\xf9\xdc\xbd\x16\x1a+6\x16\x90Z\xfc'
Hmm. Nope. Not ringing any bells.
… It’s like it’s encrypted or something …
But hey, we have that other piece of data - the password value for “Preview Signature Privacy”:
“Used by Preview to encrypt stored signatures. If modified or deleted, any existing signatures will become unusable.”
Sounds like it’s a decryption key to me!
I’m going to cheat here and just raw copy the value using Keychain Access (just clicking on “Show Password” and copying out the value). (I have code for reading from the keychain, but that’s for another post.)
>>> len(binary_key)
16
A 16 byte key. If you know anything about encryption, that’s a pretty common key length for many common block cipher (ECB and CBC) algorithms.
But we need to know exactly what algorithm was used here.
Back to Hopper we go!
Searching through PVSignature code, this would seem key: -[PVSignature decrypt]:
Looking at the pseudocode for it, it generates an instance of a new class “PVSignatureEncryptor”:
rax = [PVSignatureEncryptor sharedInstance];
Based on that, we find: -[PVSignatureEncryptor decryptedData:]:
This code has exactly what we’re looking for - information about how it decrypts the data:
if (CCCrypt(0x1, 0x0, 0x1, r12, 0x10, 0x0, var_68, r14, r15, rax, var_58) == 0x0) {
And in this instance, we want to look at not just the pseudocode, but also the assembly for a little more clarity:
mov edi, 0x1 ; argument "op" for method imp___stubs__CCCrypt
mov esi, 0x0 ; argument "alg" for method imp___stubs__CCCrypt
mov edx, 0x1 ; argument "options" for method imp___stubs__CCCrypt
mov rcx, r12 ; argument "key" for method imp___stubs__CCCrypt
mov r8d, 0x10 ; argument "keyLength" for method imp___stubs__CCCrypt
xor r9d, r9d ; argument "iv" for method imp___stubs__CCCrypt
Looking at the documentation for CCCrypt, we get:
CCCrypt(CCOperation op, CCAlgorithm alg, CCOptions options,
const void *key, size_t keyLength, const void *iv,
const void *dataIn, size_t dataInLength, void *dataOut,
size_t dataOutAvailable, size_t *dataOutMoved);
Now we can figure out the arguments that were passed, with a little help from the CommonCryptor.h header file and the above:
- operation/”op”: 0x1 (kCCDecrypt, from <CommonCryptor.h>)
- algorithm/”alg”: 0x0 (kCCAlgorithmAES128)
- “options”: 0x1 (kCCOptionPKCS7Padding in this context)
- “key” is probably our “binary_key” from above
- “keyLength”: 0x10 which is hex for 16 - a length that matches the length of our “binary_key” 😀
- “iv”: 0, aka null pointer / empty value in this context
The rest of the arguments we don’t care so much about as they’re for handling getting data into/out of the decryption.
With one last bit from the documentation on CCCrypt, we have everything we need:
“If CBC mode is selected and no IV is provided, an IV of all zeroes will be used”
Ok, now to try decrypting. We’re going to use the python Crypto module for this part:
>>> decrypted_data[:50]
"\xe4\x9c\x0f\xff\xd2\xee`\x0e\xbe8w8\xef\xaaT\xf1\x07\xeas\xe0Z\x96'6\xfc\x95\x9e\xa9\xce\xb5>\xd4bplist00\xd4\x01\x02\x03\x04\x05\x06,-X"
Oh ho ho! I see a bplist00 …
>>> decrypted_data.index('bplist00')
32
Looks like there’s a 32 byte prefix - looking back at the code of -[PVSignatureEncryptor decryptedData:], we can see:
CC_SHA256(rbx, rsi, var_50);
SHA-256 is a 32-byte CRC. Likely the decrypted data is prefixed with its CRC hash so that the code can tell easily if it decrypted the signature correctly by validating the hash of the binary plist data matches the hash in the 32 byte prefix.
So let’s skip the first 32 bytes and try to parse it directly as a plist.
… But before we do that, the “kCCOptionPKCS7Padding” option that was mentioned earlier means that this data is padded out to a multiple of 16 bytes:
>>> len(decrypted_data)/16.
120.0
So we have to remove the padding per the PKCS7 standard. We can do that with this bit of code:
Now we can attempt parsing the plist data for bytes 33+
>>> decrypted_plist
{
"$archiver" = NSKeyedArchiver;
"$objects" = (
"$null",
[...]
Success!!
What do we have this time? Let’s try to decode it. But since we decrypted with python, our data is a string - need to wrap it into an NSData object first.
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
objc.error: NSInvalidUnarchiveOperationException - *** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (PVSignaturePayload)
Progress - now we’re working with a “PVSignaturePayload”.
Again, let’s look at what data we have, and then compare that against the contents of “PVSignaturePayload.h” from our earlier class-dump run:
>>> decrypted_plist['$objects'][1]
{
"$class" = "<CFKeyedArchiverUID 0x7fba02522bd0 [0x7fff7951bed0]>{value = 7}";
baselineHeight = "0.1176470592617989";
creationDate = "<CFKeyedArchiverUID 0x7fba025203d0 [0x7fff7951bed0]>{value = 4}";
lastUsedDate = "<CFKeyedArchiverUID 0x7fba025203f0 [0x7fff7951bed0]>{value = 6}";
path = "<CFKeyedArchiverUID 0x7fba02520350 [0x7fff7951bed0]>{value = 2}";
}
vs.
Oh goodness - NSBezierPath??
We are SOOOO close.
That’s vector information, very likely our actual signature!
We could look back at the code in Preview.app for PVSignaturePayload - but we appear to have a match for a match on everything, let’s just wing it!
>>> real_sig_decoded.baselineHeight
0.11764705926179886
>>> real_sig_decoded.path
Path <0x7fba0251bb90>
Bounds: {{107.10252904995613, 3.5527136788005009e-15}, {271.91783064182891, 67}}
Control point bounds: {{106.36058807373047, -1.9758532047271729}, {274.53815460205078, 68.975853204727173}}
204.485748 61.750000 moveto
204.099686 58.862499 201.597519 49.750000 198.925385 41.500000 curveto
196.253250 33.250000 193.444489 24.025000 192.683685 21.000000 curveto
[...]
YAY! We’ve got our vector information!
Now, to verify this is what it is, let’s kick it out to an image file.
But NSBezierPath doesn’t have to start at a (0,0) coordinate origin. In fact, the “Bounds” values above indicate it’s offset. So let’s make a transform and shift it back to something more reasonable before we draw it.
>>> sig_path_shifted
Path <0x7fba04ef0000>
Bounds: {{0.10000000000000142, 0.10000000000000001}, {271.91783064182891, 67}}
Control point bounds: {{-0.64194097622566915, -1.8758532047271763}, {274.53815460205078, 68.975853204727173}}
97.483219 61.850000 moveto
97.097157 58.962499 94.594990 49.850000 91.922855 41.600000 curveto
89.250721 33.350000 86.441959 24.125000 85.681156 21.100000 curveto
Much better. Now we’re just inside (0,0).
Now to build an image and draw the path onto it.
(I’m gonna race through this a bit here because we’re so close to the end!)
##veni, vidi, vici!
##final notes
This entire post was about signatures in 10.9.
Signatures in 10.10+ have taken a new turn.
Now the com.apple.Preview.signatures preference domain appears to be legacy: when you upgrade 10.9 to 10.10, OS X appears to perform a one-time conversion of your signatures into the new format. (Speculation on my part - calling Rich, master of OS X VMs, to verify …)
In 10.10+, signatures appear to be stored entirely in the keychain - but not your login.keychain.
Now every signature gets a “Signature Annotation Privacy” item in your “Local Items” keychain (which may be named “iCloud Keychain”, if you’ve enabled that function with your iCloud account).
Instead of an encryption key stored in the password value, an entire binary plist appears to be there.
Additionally, the note has changed:
“Signatures for AnnotationKit (shared by e.g. Sketch & Preview). Deletion will remove all signatures from the list.”
I’ve done some initial investigations into this binary plist value and as expected, the contents are not like they used to be.
I’ll continue looking into it (and maybe write about what I find at some point …)
- mike


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My name is Thomas Oliver Kimble and I am an engineer with a passion for music.
Personal life
I was born in England and moved to Switzerland when I was 3 years old. I then moved to France at 5, but continued my education in Switzerland.
Maths and Science have always intrigued me, so becoming an engineer was a natural decision as I have always been fascinated as to how things work. I also have an eye for design and aesthetics, allowing me to show a more creative side in contrast with my studies.
There has always been a guitar around me, and I started playing at 7 years old. I have played in multiple bands, and performed at festivals, in bars, outdoors, indoors… you name it! Curiosity lead me to also pick up other instruments such as the drums and the piano over the years, allowing me to compose songs myself.
Education
After graduating secondary school with a French Baccalauréat with a scientific orientation in 2015, I obtained a Bachelor’s Degree in Microengineering in 2019, and am currently finishing my Master’s degree in Robotics at EPFL in Lausanne, Switzerland.
Microengineering at EPFL allowed me to develop skills in a lot of domains such as electrical engineering, mechanical design, structural engineering, micro/nano-tech, software engineering and robotics. It was during my final year that I developed a keen interest in robotics oriented software engineering, hence pursuing a Master’s degree in the domain.
Resume
Please find my Resume/CV here.


Swiss TV company rights the wrongs of the Siri Remote
Source: MacRumors
What you need to know
- Swiss TV company Salt gives an Apple TV 4K to its users.
- But so many complained about the Siri Remote that it had to build its own.
- The new remote can be bought for less than 20 Swiss francs.
Apple's Siri Remote has always been a bone of contention for Apple TV users. And with Swiss fiber TV company Salt giving Apple TV 4K boxes to its subscribers it was only a matter of time before they complained. And when they did, Salt made an alternative.
The new remote looks more like a "proper" remote than anything Apple has made and while it was reportedly designed in collaboration with Apple, it's clear this is something it wouldn't want to ship itself.
Because that collaboration was in place the remote works just like the Siri Remote does. There are no steps needed in order to pair the thing and it looks much easier to use without accidentally rewinding whatever you're watching, too.
Save 40% and get three months of wireless service for just $45
Hopefully this is good news for everyone, though. It seems Apple is aware that the Siri Remote design is sub-optimal. And given its newfound fondness of listening to users and acting on their feedback we can reasonably hope – if not expect – that the next Apple TV will rectify things.
Maybe?
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---
layout: post
title: EuroStation pencil sketch
date: '2018-06-16T11:30:14+02:00'
categories:
- Sketches
picture_url: https://film-Storyboards.tumblr.com/post/174948031414/eurostation-pencil-sketch
---
A sketch for the EuroStation 2008 JaarBoek (annual report) Agency: LUON


- IMPROVE: ability to rebuild all dependent projects from a leaf (IVY-101) - IMPROVE: Artifact pattern list attribute for the ivy:publish (IVY-113) - IMPROVE: Measure code coverage (IVY-323) - IMPROVE: add release target to build file (IVY-339) - IMPROVE: Add a 'conf' parameter to the ivy 'publish' ant task (IVY-322) (thanks to Emmanuel Pellereau) - FIX: retrieve fails when resolve is done with useOrigin set to true (IVY-304) - FIX: IVY complains about non-existent reports in the cache directory (IVY-315) - FIX: Typo in failureproperty attribute of Ant resolve task (IVY-327) (thanks to Jean-Baptiste Quenot) - FIX: ivy:resolve useOrigin fails to behave correctly (IVY-332) - FIX: ChainVersionMatcher doesn't handle IvyAware children version matchers (IVY-331) - FIX: latest.<status> does not work properly when no matching revision exist (IVY-318) - FIX: attribute name in macrodef is not handled as expected (IVY-319) - FIX: confmappingoverride doesn't work for configurations extending from "*(public)" (IVY-326)


"It is no surprise that we are not where we want to be"
by Louis ShawRacing Point boss Otmar Szafnauer has put his team's results in perspective after he has revealed that the team is still suffering from the lack of money from previous seasons. Lawrence Stroll has now helped the team financially but Szafnauer thinks that it won't be until next season that we will see the improvements this money will bring.
It has been a disappointing season for Racing Point and they haven't been able to reach their goals.
"We were hoping to be fifth or fourth this year, so in that respect it is a bit disappointing," Szafnauer reports to Autosport.
"If you look at what happened last year, when the car was under development and we were struggling with unrest, all the more financially, it is not surprising."
Lawrence Stroll will hope to see some return to his investment in the team next season and that his son, Lance Stroll, is given a fast car!


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Uhuru Forces ODM to Postpone Party's Crucial Event
by Derrick OkubasuOrange Democratic Movement (ODM) party was, on Monday, November 25, forced to postpone its event for coinciding with that of President Uhuru Kenyatta.
The party had scheduled to launch its new headquarters building located in Lavington, Nairobi, but had to push the event to Thursday, November 28.
The Raila-led party, in a statement, explained that it had to push the launch date further because the initial one coincided with the day Uhuru was set to receive the much-touted Building Bridges Initiative (BBI).
The event doubled as the inauguration of the party's digital membership registration.
"Due to the state event on the BBI scheduled for tomorrow at State House Nairobi, our scheduled event to inaugurate the new party headquarters and the launch digital membership registration has been pushed to Thursday 28/11.
"Invited guests are reminded to carry their cards to the event," read the statement in part.
The BBI committee chaired by Garissa Senator Yusuf Haji announced on Friday, November 22, that it was ready to hand over various recommendations it had been tasked with formulating after the handshake between former Prime Minister Raila Odinga and President Uhuru Kenyatta.
The committee was officially gazetted on May 31, 2018, where it was supposed to table a report after one year of service.
In anticipation of the document, Uhuru urged Kenyans to carefully read through the proposals in the document before deciding whether or not to support it.
“It is only an ignorant person who will say there are no issues in this country that require to be addressed. Let us address them as adults, as civilized human beings, let us appreciate that we may have divergent views but our objective is to make our motherland better," warned Kenyatta.
After receiving the document on Tuesday, the head of state is expected to present it to the public on Wednesday, November 27, in an event that will be attended by 4,700 delegates at the Bomas of Kenya.


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GOVERNMENT OF THE DISTRICT OF COLUMBIA Department of Employment Services Open Government Report 2014 To institutionalize a culture of transparent and open government, accountability, and to expand opportunities for resident participation and collaboration, this Report describes how the Department of Employment Services (DOES) has and will continue to develop and enhance transparency, public participation, and collaboration. In accordance with Mayor’s Order 2014-170, this report addresses the following topics: 1) Transparency Describe the steps your agency has taken or plans to take to be more transparent. Please include a description of: How and to what extent your agency shares information with the public, e.g. publication of information in the District register and on the agency website, press releases, and documents in the agency’s FOIAXpress reading room. DOES shares information with the public through various methods of external communication, including written letters, correspondence, and email blasts to customers; brochures, flyers, fact sheets, and poster displays at American Job Centers; and Interactive Voice Response (IVR) messaging via our main DOES customer service telephone line. One of our central communication methods to disseminate public information most expeditiously, however, is via the DOES website where we publish timely press releases on employment data, program and event announcements and outcomes, and major grant and funding awards from the U.S. Department of Labor (USDOL), etc.; current labor statistics and new labor publications developed by the Office of Labor Market Research and Information; and unemployment compensation information and important announcements for UI claimants and employers. The DOES website is constantly monitored and updated regularly. DOES also publishes major announcements related to employment-related laws and law modifications in the District’s public register (e.g., Office of Wage and Hour law updates, First Source law updates, etc.) as well as public Notices of Funding Availability (NOFAs) and grant opportunities, etc. www.does.dc.gov http://does.dc.gov/newsroom http://does.dc.gov/page/labor-statistics http://does.dc.gov/page/unemployment-compensation How the agency meets its obligations pursuant to the District’s Freedom of Information Act and Open Meetings Act. DOES publishes all public meetings and events on its online calendar on the front page of the DOES website, and minutes of all applicable DOES public proceedings are published 1 online. In addition, DOES makes all final opinions and orders of adjudicated cases available online and FOIA-able. All FOIA requests sent to DOES via the DC Government Public FOIA Portal or by mail, fax, or email are processed by the agency’s FOIA officer and handled professionally and expeditiously. http://does.dc.gov/page/dc-apprenticeship-council-meeting-minutes http://does.dc.gov/page/compensation-review-board Steps your agency will take to increase public access to information. DOES will continue to publish all vital public information on its main website, including press releases with regard to employment-related information and updates, significant USDOL announcements, and event announcements and outcomes; post, display, and distribute vital public information at all American Job Centers; broadcast regularly updated messaging on our IVR system; and provide timely written correspondence to our customers, as warranted. In addition, DOES will begin to disseminate at American Job Centers and public forums, as well as post online, more employment-related fact sheets and FAQs, including job retention and job readiness information; employee wage and hour rights and changes to laws that effect employees; veteran-, youth- and senior-related services and opportunities; unemployment compensation-related announcements and materials, etc. Steps your agency will take, including an implementation timeline, to webcast live and archive on the internet board or commission meetings. (This question only applies to agencies that are overseen or advised by a board or commission that is subject to the Open Meetings Act.) How your agency has taken or plans to take steps to make more of its data available to the public. N/A DOES is working closely with the Office of the City Administrator (OCA) and the Office of the Chief Technology Officer (OCTO) to identify a significant number of datasets that OCA and OCTO expect to publish online later this year. If no dataset from DOES is selected to be included in this 2014 release, we will continue to work with OCA and OCTO to identify datasets appropriate to publish in 2015. In the future, requirements for open data reporting will be provided by the Chief Data Officer. 2) Public Engagement and Participation Describe the steps your agency has taken or plans to take to enhance or expand opportunities for the public to participate in agency decision-making. Please include a description of: 2 1. How your agency provides online access to proposed rules and regulations and secures public input on them. Please list links to specific websites. DOES lists links to all proposed and final rules, regulations, and requests for public comment on all program-related web pages pertaining to said proposed rulemaking and regulations. Specifically, the most frequently amended employment-related rulemakings and laws pertain to the Office of Wage and Hour (e.g., Living Wage, District of Columbia Minimum Wage Law, Accrued Sick and Safe Leave Act), and all amendments and updates are posted on the DOES Wage and Hour Compliance web page in real time. http://does.dc.gov/service/wage-and-hour-compliance 2. How your agency shares information and resources to keep the public properly informed, e.g. community meetings, public hearings, FAQs, and ways the public can provide input such as Twitter, grade.dc.gov, email contacts. DOES shares with and distributes information and resources to the public at American Job Centers, public forums, ANC meetings, hiring fairs, and public outreach events held at DOES Headquarters, American Job Centers, and external venues with partner organizations throughout the Washington metropolitan area. The DOES IVR system is updated regularly with important announcements, and the DOES website is a principal medium to disseminate vital information to the public, including public meeting notices, programmatic FAQs and factsheets, public testimony, grant and funding availabilities, annual reports, state plans, etc. In addition, requests for comment on proposed rulemakings are posted on the DOES website as well as published in the District’s public register. DOES also maintains an active social media presence. Twitter updates are posted regularly to the DOES website front page, and the Office of Youth Programs uses social media as a primary communication method to engage and correspond with District youth. Constituents young and old respond regularly to DOES Twitter and Facebook postings. Grade DC is another primary mechanism used by DOES to obtain feedback from customers regarding DOES customer service and is marketed at all DOES events as well as employed by American Job Center staff to solicit real-time, constructive feedback. 3. How your agency identifies stakeholders and invites their participation. DOES has a vast network of partner organizations, stakeholders, and customers and constituents who have participated in DOES employment-related events or received agency services. DOES maintains several stakeholder databases, including the One City • One Hire database, the Contracts and Procurement database, and the District’s DCNetworks database/Virtual One Stop (VOS) system that serves as the system for all Wagner/Peyser, Workforce Investment Act (WIA) and Trade Act participants. To invite relevant stakeholders to participate and/or partner in specific events or to apply for applicable funding opportunities, DOES identifies and matches stakeholders in these database with related pre-screening and hiring events, partnership opportunities, 3 and grants and funding solicitations. Requests for participation are sent via written or verbal correspondence that includes letters, emails, online registrations (e.g., Eventbrite) and in-person and telephonic invitation requests; invitations and calendar announcements are also posted on the main DOES website. www.does.dc.gov www.dcnetworks.org http://onecityonehire.org/ 4. Steps your agency will take to improve public engagement and participation including any new feedback tools or mechanisms the agency is considering. To enhance our public engagement efforts as well as increase instant, real-time customer feedback, DOES will begin generating more online feedback tools to post on the main DOES website and individual programmatic web pages, including online customer service surveys using Survey Monkey; installing desktop customer feedback links (e.g., Grade DC) on all public access computers at American Job Centers, and developing a cost-efficient strategy to utilize the agency’s One-Stop Mobile Unit on a steady basis to register District residents for DOES programs and services at community events across the city. 3) Collaboration Describe the steps your agency has taken or plans to take to enhance or expand cooperation among departments, other governmental agencies, the public, and nonprofit and private entities in fulfilling its obligations. Please include a description of: How your agency currently collaborates with the above parties. Please list links to specific websites if appropriate. DOES partners with several sister District agencies as well as collaborates with numerous external private and non-profit organizations to fulfill its mission, vision, and public obligations. DOES engages in robust collaborations with the following sister agencies: DC Public Schools (DCPS)/ Office of the State Superintendent of Education (OSSE)/ Department of Youth Rehabilitation Services (DYRS)/ Child and Family Services Agency (CFSA) – Various youth-related initiatives, including Summer Youth Employment Program (SYEP), Mayor’s Youth Leadership Institute (MYLI), One City High School Internship Program (OCHSIP), In-School and Out-of-School Programs, etc. (http://dcps.dc.gov, http://osse.dc.gov, http://dyrs.dc.gov, http://dc.gov/agency/child-and-family-services-agency, http://cfsa.dc.gov) Office of Human Rights (OHR) – Language Access Program (http://ohr.dc.gov) 4 Office of Disability Rights (ODR) – Disability-related customer services and relations, e.g., American Sign Language customer services (http://odr.dc.gov) Office on Aging (DCOA) – Senior Community Service Employment Program (SCSEP) (http://dcoa.dc.gov) Office of Veterans Affairs (OVA) – All DOES veteran-related initiatives (http://ova.dc.gov) Office on Returning Citizens Affairs (ORCA)/Office of Gay, Lesbian, Bisexual and Transgender Affairs – Project Empowerment Program (http://orca.dc.gov, http://glbt.dc.gov) Office of Contracting and Procurement (OCP) – All DOES contracting, procurement, and funding initiatives (http://ocp.dc.gov) Office of Administrative Hearings (OAH) – All DOES customer-related adjudication services (http://oah.dc.gov) Steps your agency will take to improve collaboration with the above parties including any new feedback tools or mechanisms the agency is considering, e.g. prizes, competitions, and other innovative methods. To enhance our collaborations with external private and non-profit organizations, DOES will develop strategies to increase partnerships with stakeholders who share a mission akin to the DOES mission which is to help put people to work. These collaborations include increased public outreach efforts, hiring fairs, and employment-related public forums. DOES will also begin sharing DOES programs and services links to post on partner organization websites to increase DOES online traffic and in-person visits to American Job Centers. In addition, DOES will continue to enhance and update its job seeker resources web page with a wide range of direct links to partner organization sites and a number of tools and resources, complete with and a brief description of what the sites have to offer. (http://does.dc.gov/node/206292) 5


| Opcode/Instruction | Op /En | 64/32 bit Mode Support | CPUID Feature Flag | Description |
|---|---|---|---|---|
|
EVEX.NDS.LIG.66.0F38.W0 CD /r VRSQRT28SS xmm1 {k1}{z}, xmm2, xmm3/m32 {sae} |
T1S | V/V | AVX512ER | Computes approximate reciprocal square root (<2^-28 relative error) of the scalar single-precision floating-point value from xmm3/m32 and stores result in xmm1with writemask k1. Also, upper 3 single-precision floating-point value (bits[127:32]) from xmm2 is copied to xmm1[127:32]. |
| Op/En | Operand 1 | Operand 2 | Operand 3 | Operand 4 |
| T1S | ModRM:reg (w) | EVEX.vvvv (r) | ModRM:r/m (r) | NA |
Description
Computes the reciprocal square root of the low float32 value in the second source operand (the third operand) and store the result to the destination operand (the first operand). The approximate reciprocal square root is evaluated with less than 2^-28 of maximum relative error prior to final rounding. The final result is rounded to < 2^-23 rela-tive error before written to the low float32 element of the destination according to the writemask k1. Bits 127:32 of the destination is copied from the corresponding bits of the first source operand (the second operand).
If any source element is NaN, the quietized NaN source value is returned for that element. Negative (non-zero) source numbers, as well as -∞, return the canonical NaN and set the Invalid Flag (#I).
A value of -0 must return -∞ and set the DivByZero flags (#Z). Negative numbers should return NaN and set the Invalid flag (#I). Note however that the instruction flush input denormals to zero of the same sign, so negative denormals return -∞ and set the DivByZero flag.
The first source operand is an XMM register. The second source operand is an XMM register or a 32-bit memory location. The destination operand is a XMM register.
A numerically exact implementation of VRSQRT28xx can be found at https://software.intel.com/en-us/arti-cles/reference-implementations-for-IA-approximation-instructions-vrcp14-vrsqrt14-vrcp28-vrsqrt28-vexp2.
Operation
VRSQRT28SS (EVEX encoded versions)
IF k1[0] OR *no writemask* THEN
DEST[31: 0] (cid:197) (1.0/ SQRT(SRC[31: 0]));
ELSE
IF *merging-masking*
; merging-masking
THEN *DEST[31: 0] remains unchanged*
ELSE
; zeroing-masking
DEST[31: 0] (cid:197) 0
FI;
FI;
ENDFOR;
DEST[127:32] (cid:197) SRC1[127: 32]
DEST[MAX_VL-1:128] (cid:197) 0
| Input value | Result value | Comments |
|---|---|---|
| NAN | QNAN(input) | If (SRC = SNaN) then #I |
| X = 2-2n | 2n | |
| X < 0 | QNaN_Indefinite | Including -INF |
| X = -0 or negative denormal | -INF | #Z |
| X = +0 or positive denormal | +INF | #Z |
| X = +INF | +0 |
Intel C/C++ Compiler Intrinsic Equivalent
VRSQRT28SS __m128 _mm_rsqrt28_round_ss(__m128 a, __m128 b, int sae);
VRSQRT28SS __m128 _mm512_mask_rsqrt28_round_ss(__m128 s, __mmask8 m,__m128 a,__m128 b, int sae);
VRSQRT28SS __m128 _mm512_maskz_rsqrt28_round_ss(__mmask8 m,__m128 a,__m128 b, int sae);
SIMD Floating-Point Exceptions
Invalid (if SNaN input), Divide-by-zero
Other Exceptions
See Exceptions Type E3.


Welcome to Mono County, the heart of the Eastern Sierra. Mono County is located along US395 in between Bishop and Lake Tahoe. It has famous Yosemite National Park on the westside and the state of Nevada on the east. It is a paradise for hikers and flyfishers.


Disciplines and Domains
- Some of the labs requires the users to install the Pre-requisites. Click here to view Pre-requisiltes
- In order to derive maximum learning experience, the users are advised to first read the instructions for conductiong the labs. There are' step-by-step' instructuins available in each lab to assist the users.
- Some of the labs require the users to log in first. Eventually, there will be a common login for labs.
- Related NPTEL lectures are also available on the link given below.
- *Sign in required
*Hybrid electronics Lab
To design and implement Various Arithmetic Circuits,Code Converters, Counters and Shift Registers, Arithmetic Logic Unit etc;
COE PUNE
Reference Books
1 - J. F. Wakerly, Digital Design Principles and Practices, Fourth Edition, Prentice-Hall, 2005.
2 - R. L. Tokheim, Digital electronics, Principles and applications, 6th Edition, Tata McGraw Hill Edition, 2003
Syllabus Mapping
MDU, KUK, UPTU, UTU, IPU, PTU (UG)
*Signals and Systems Laboratory
Demonstration of different signals and their properties, demonstration of Salient properties systems, Analysis of Fourier properties of Signals.
IIT GUWAHATI
Reference Books
1 - V. Oppenheim, A.S. Willsky and S. Hamid Nawab, Signals & System, PEARSON Education, Second Edition, 2003.
2 - Schaume Series on Signals & Systems, HSU & RANJAN, TMH,India
Syllabus Mapping
MDU, KUK, UPTU, PTU (UG)
*Engineering Electromagnetic Lab
Objectives of the lab:Software based Electromagnetics laboratory for Undergraduate Students, Server configuration for data flow and web hosting, Creating a client side Graphical User Interface (GUI).
IIT DELHI
Reference Books
No books in records
Syllabus Mapping
No syllabus in records
*Virtual Queuing Networks Modelling
The sole objective of this virtual lab is to develop a software tool which helps the students to understand and visualize the concepts of queues and equip them with the necessary insight so as to apply queuing systems to real world problems.
IIT DELHI
Reference Books
1 - Murray R. Spiegel, Probability and Statistics, McGrawHll, Schaums Outline Series
Syllabus Mapping
No syllabus in records
*Digital VLSI Design Virtual Lab
To plot the (i) output characteristics & (ii) transfer characteristics of an n-channel and p-channel MOSFET, to design and plot the static (VTC) and dynamic characteristics of a digital CMOS inverter etc;
IIT GUWAHATI
Reference Books
1 - N.H.Weste, Principles of CMOS VLSI Design‟ , Pearson Education, India, 2002
2 - VLSI Technology: S.M. Sze; McGraw-Hill.
Syllabus Mapping
MDU, KUK, PTU (UG, PG)
*Electronic Devices and Circuits
This labs provides experiments for I-V Characteristics and Fabrication of p-n junction Diode, I-V Characteristics of LED Diode, Rectifier Circuits and Wave Shaping Circuits using Diodes.
IIT BOMBAY
Reference Books
No books in records
Syllabus Mapping
No syllabus in records
*Virtual Electrical Machine
A virtual laboratory is a tool for distance learning and/or experimentation that allows people to share knowledge, data, voice, video, tools, and many other resources. It provides a suitable environment to extend, improve, integrate, refine, and assist the learning and/or experimentation process of many subjects, thus contributing to an increase of the effectiveness of scientific research and widening the use of scarce or costly equipments
IIT GUWAHATI
Reference Books
No books in records
Syllabus Mapping
No syllabus in records
*Electronic Instrumentation Lab
A virtual laboratory is a tool for distance learning and/or experimentation that allows people to share knowledge, data, voice, video, tools, and many other resources. It provides a suitable environment to extend, improve, integrate, refine, and assist the learning and/or experimentation process of many subjects, thus contributing to an increase of the effectiveness of scientific research and widening the use of scarce or costly equipments.
IIT GUWAHATI
Reference Books
No books in records
Syllabus Mapping
No syllabus in records


Introduction
Download
Installation
The UI
Quick Start
Composition Structure
Bols
Loops
Compositions
Editing
Variations and Effects
Links
Credits
Release Notes
Oormi Creations
Production
© 2018


CBT Tool
Events → Thoughts → Feelings → Actions
What happened
What did I tell myself?
How did I feel?
What did I do?
Challenge your thinking
Are my thoughts accurate?
Are my thoughts helpful?
Did I make a thinking mistake?
Nope
Black-and-white thinking
Unreal ideal
Filtering (only seeing negative)
Personalizing: The self-blame game
Mind-reading
Catastrophizing
Over-generalizing (always/never)
Fact versus feeling
Labeling (I'm stupid/ugly)
What could I say to myself that would be more accurate/positive/helpful?
How would I feel if I told myself this?


In Kotlin, you can easily use Java keywords as identifiers, making such declarations unusable from Java.
This inspection reports such cases, for example:
class enum object const val int = 1 fun goto() {}
The inspection is provided by Mike's IDEA Extensions.


Bug summary:
It did not generate the token. Looked like what it was on the incorrect video.
Observed Behavior (a description of what happened with the app):
I put in "qin" in the blank, and followed what the video did, pressed next, and chose the second option. And pressed complete. But it says no token defined.
Expected Behavior (a description of what you expected to happen):
I think according to the correct behavior video. I should see a token generated
Steps to Reproduce (the steps to reproduce the problem):
1. Go on the app in my browser
2. Put in "qin" and press next
3. select the second choice and press complete.
Additional information:
Attachments:


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Tweet Us or DM us on Twitter


A short description of the group as a whole, and what we are doing and such.
Short description of Johnny.
Short description of Morten
Short description of Johanne
Short description of Zamra
Rasmus is totally awesome and great! He also made this fantastic webpage!
Some kind of short description of the model (with equations, that would be nice!)
This part should have equations
Like this:
\( \frac{dx_0}{dt} = (r_x \phi_x s- a_x - d_{x0}) x_0 - r_m s x_0 \)
\( \frac{dx_1}{dt} = a_x A_x x_0 - d_{x1} x_1 \)
\( \frac{dy_0}{dt} = (r_y \phi_y - a_y - d_{y0}) y_0 + r_m s x_0 \)
\( \frac{dy_1}{dt} = a_y A_y y_0 - d_{y1} y_1 \)
\( \frac{da}{dt} = d_{x0} x_0 + d_{y0} y_0 + d_{x1} x_1 + d_{y1} y_1 -e_a a s\)
\( \frac{ds}{dt} = r_s a - e_s s + I \)
where \( \phi_x (x_0,y_0) = \frac{1}{1+c_{xx}x_0 + c_{xy}y_0} \) and \( \phi_y (x_0,y_0) = \frac{1}{1+c_{yx}x_0 + c_{yy}y_0} \)
DOI: 10.1371/journal.pone.0183620
Andersen, Morten; Sajid, Zamra; Pedersen, Rasmus Kristoffer; Gudmand-Høyer, Johanne; Ellervik, Christina; Skov, Vibe; Kjær, Lasse; Pallisgaard, Niels ; Kruse, Torben; Thomassen, Mads; Troelsen, Jesper; Hasselbalch, Hans; Ottesen, Johnny T.
View ArticleJohnny T. Ottesen, Rasmus K. Pedersen, Zamra Sajid, Johanne Gudmand-Høyer, Vibe Skov, Lasse Kjær, Niels Pallisgaard, Hans C. Hasselbalch, and Morten Andersen
View Article


How to use Jupyter more effectively?
IPython is about using Python effectively for interactive scientific and data-intensive computing. There are two methods of using it; the IPython shell and the IPython notebook.
IPython shell
IPython interpreter can be launched by typing:
$ ipython
on the command line. It will look like
ipython shell
IPython notebook
Jupyter is a browser-based graphical interface of Ipython shell. It is an open-source web application which allows a user, to create and share documents, which can execute on their systems.
It is a very useful tool for machine learning, data science, visualizations as it can contain code, equations, visualizations etc in one place. It blends two things, Python(a simple scripting programming language) and Wiki pages.
To run IPython notebook, it is very easy just by typing the following on system shell:
jupyter notebook
It will appear as:
starting jupyter notebook
A local web server and browser will automatically open and navigate to the local URL. If not, manually, it could be accessed at http://localhost:8888 on the browser.
Jupyter notebook on the browser at local localhost
Basics of Jupyter Notebook
Click on the New > Python 2, for creating a new notebook. For giving it a name, click on the “untitled” and change it. The jupyter notebook is made up of cells where the python code is written as shown:
Hello World on jupyter
You can find the source code of the previous program here:
print "Hello World"
The cell is executed by clicking Cell > Run Cells or by Shift + Enter
.
Shift + Enter
execute the cell and create a new cell below it.Crtl + Enter
execute the cell only.
Markdown is used for formatting the cells. To convert it, go to Cell > Cell Type > Markdown or type Esc + M
.
Formating text on jupyter
In Markdown language: # is used for H1 Heading like in HTML and ## like H2, only the font size decrease.
Create a variable
Python is a scripting language. Variables are created on the fly, there is no need to declare it before or their types, like in another language like C. Any global variable which is created can be used in another cell.
Creating variable in jupyter
Source code of the above program:
i = 15
type(i)
Different variables can be created in the Jupyter notebook as follows:
Creating variable in jupyter
Some advanced level python
List
The list is made by comma-separated values between square brackets[]. To access values in lists, use square brackets with the index number.
- List is mutable, which means they can be changed.
- It is an ordered collection of objects, the order in which elements are defined is maintained like that.
Dictionary
Dictionary is made by placing the values inside the curly brackets{} separated by a comma. It is a pair that consists of a key and value. To access the ‘value’, the ‘key’ is put in the square brackets [].
- It is mutable.
- Dictionaries are unordered.
List and dictionary in jupyter
You can find the source code of the previous program here:
l = [1,3,5,7,9] # list
print l
print l[2]
dic = {'firstValue':1,'secondValue':2,'thirdValue':3}
dic['firstValue']
Creating functions
A function is a group of statements, which perform a specific task. Data(also known as parameters)can be passed into a function which returns a data as a result.
There are two ways to define a function:
- Normal functions are defined by the
def
keyword as shown below:
Function in python
You can find the source code of the previous program here:
def mul(a, b):
return a*b
mul(4,5)
- Lambda function also known as anonymous functions. The syntax of a lambda function is
lambda arguments: expression
. Lambda functions are single-expression functions that can have numbers of arguments.
Lambda function in python
You can find the source code of the previous program here:
cube = lambda y : y* y*y
cube(5)
Documentation with ?
Python has a built-in help() function that accesses the docstring (it contains the summary of the object) information and prints the results.
In IPython, the ? character is a shorthand for accessing documentation for functions or other objects.
Accessing documentation in python
You can find the source code of the previous program here:
help(len)
len?
Source Code with ??
Source code can be accessed in IPython just by putting a double question mark ( ?? ) after the function.
Accessing source code in python
You can find the source code of the previous program here:
cube??
len??
Sometimes the ?? suffix doesn’t show source code, because that particular object is not implemented in Python, but in other language or in C. In this case, the output of ?? is the same as the ? suffix.
Magic Functions
Magic functions solve common problems in data analysis using Python. These are of two types.
- Line magics: operate on a single line of input and have single % prefix.
- Cell magics: operate on multiple lines of input and have double %% prefix.
%automagic
If the argument is set to 1 then there is no need to type the initial %
before magic functions. It can be deactivated by setting to 0.
automagic function in IPython
%cd
It is used to change the current directory. This is a line magic function. A tab can be used to see the different options available. IPython session has _dh variable in which an internal list of directories is stored.
cd magic function in IPython
%dhist
It is used to see all the directories visited in a current session. It uses the _dh variable list to show the list of directory.
dhist magic function in IPython
%run
Python script can be run from within IPython shell by %run command.
%run magic function in IPython
hello.py file of the above %run magic function.
def hello():
return "Hello World"
print( hello())
%timeit
%timeit is an ipython magic function, which is used to time the execution of a particular piece of code. It can be a single execution statement, or a single method. It belongs to the line magic function.
%timeit magic function in IPython
Shell Commands in IPython
The shell commands can also be used in IPython, just by adding ! character before the command.
Some shell commands in IPython
You can find the source code of the previous program here:
!ls
!pwd
!echo "Hello"
Some Shortcuts
Shift + Enter
: Execute the cell and create a new cell below it.Ctrl + Enter
: Execute the cell only.Esp + M
: To get Markdown.Esp + L
: To get line numbers in long code.
Conclusion
In this post, you learned about IPython. We started with the basics of Jupyter notebook and covered a little bit of python, magic functions and how to use shell commands in IPython. For being an effective data scientist or software engineer, it is very important to know how to find information about unknown problems through webs search or other means rather than memorizing the tool or the command.


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Thank you for your email!
I will get back to you as soon as possible.


Enter some non-ASCII characters in the input field below and see what's happening.
(QUERY-STRING*)
NIL
(MAP 'LIST 'CHAR-CODE (GET-PARAMETER "foo"))
(GET-PARAMETER "foo")


The chilling cocaine warning you must read after pregnant mum-of-six, 34, dies
Miss Hughes, from Llangefni, eventually died from broncho-pneumonia, which caused her to collapse and led to respiratory failure
by James Rodger, Amelia Shaw, https://www.facebook.com/jamesrodgerjournalistA warning about taking cocaine has been issued by a coroner - after a pregnant mum of six died.
The mum-of-six tragically passed away in her home after taking the drug.
Lindsey Ann Hughes died 13 days after falling in her kitchen, on March 14.
The 34-year-old passed away in hospital in North Wales on March 27, when she was 15 weeks pregnant with a son.
The unborn baby was perfectly healthy when she died.
Miss Hughes, from Llangefni, eventually died from broncho-pneumonia, which caused her to collapse and led to respiratory failure - reports North Wales Live.
At her inquest held in Caernarfon, Coroner Dewi Pritchard said an "abnormally high level eight times over the level for driving" of cocaine was found in her system, which would have contributed to her death.
A post-mortem examination revealed she had damage to her heart known as cardiac fibrosis, which can be caused by chronic cocaine use.
Benzodiazepine, a drug used for a variety of medical conditions, such as anxiety, seizures, and for alcohol withdrawal, was also found in her system.
The baby Miss Hughes was carrying at the time of her death was said to be a "perfectly healthy male foetus".
Mr Pritchard said: "I am seeing far too many cocaine deaths as the use of cocaine in this part of the world is very common.
" Cocaine damages the heart by killing off patches of heart tissue and causes a tightening of the vessels.
"Even low levels of cocaine can cause catastrophic results and repeat use causes more and more damage.
"The public think cocaine doesn't do any long-term harm but it does.
" Cocaine use can and does cause long term issues."
He said Miss Hughes died as a result of respiratory failure due to the broncho-pneumonia but cocaine toxicity was a contributing factor.
He said: "If she had not taken cocaine in the past the probability is that she would have survived the broncho-pneumonia, but we cannot be sure.
"Because of the broncho-pneumonia she died of natural causes, this is not a drug death, the cocaine contributed but did not ultimately cause her death."
It was also noted that Miss Hughes' immune system would have been suppressed due to the fact she was pregnant.
At the time of her death, her friend Helen Evans described her as "full of life" and a "brilliant mother".

Lindsey's family have set up a go fund me page to help her parents look after her six children - to donate click here.


Let A be the given point, and BC the given straight line.
It is required to place a straight line equal to the given straight line BC with one end at the point A.
Join the straight line AB from the point A to the point B, and construct the equilateral triangle DAB on it.
Produce the straight lines AE and BF in a straight line with DA and DB. Describe the circle CGH with center B and radius BC, and again, describe the circle GKL with center D and radius DG.
Since the point B is the center of the circle CGH, therefore BC equals BG. Again, since the point D is the center of the circle GKL, therefore DL equals DG.
And in these DA equals DB, therefore the remainder AL equals the remainder BG.
But BC was also proved equal to BG, therefore each of the straight lines AL and BC equals BG. And things which equal the same thing also equal one another, therefore AL also equals BC.
Therefore the straight line AL equal to the given straight line BC has been placed with one end at the given point A.
Another, different, expectation is that one might use a compass to transfer the distance BC over to the point A. It is clear from Euclid’s use of postulate 3 that the point to be used for the center and a point that will be on the circumference must be constructed before applying the postulate; postulate 3 is not used to transfer distance. Sometimes postulate 3 is likened to a collapsing compass, that is, when the compass is lifted off the drawing surface, it collapses.
It could well be that in some earlier Greek geometric theory abstracted compasses that could transfer distances. If that speculation is correct, then this proposition would be a late addition to the theory. The construction of the proposition allows a weaker postulate (namely postulate 3) to be assumed.
Construction stepsWhen using a compass and a straightedge to perform this construction there are more circles drawn than shown in the diagram that accompanies the proposition. These are the two circles needed to construct the equilateral triangle ABD. One side, AB, of that triangle isn’t necessary for the construction. Altogether, four circles and two lines are required for this construction. |
Note that this construction assumes that all the point A and the line BC lie in a plane. It may also be used in space, however, since Proposition XI.2 implies that A and BC do lie in a plane.


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Getting Ready For Calculus Camp
The AP College Board describes AP Calculus AB as a course that "is designed to develop mathematical knowledge concepeturally, guiding you to connect topics and representations throughout the course and to apply strategies and techniques to accurately solve diverse types of problems."
Getting Ready for Calculus Camp will review the skills and academic vocabulary you NEED to be set up for success in calculus and preview techniques you will see in calculus.
What can I expect to get out of this?
- Review essential skills necessary for calculus concepts
- Formative assessment for each topic
- Cornell style notes to increase retention & practice note-taking skills
- Review packet to enable refreshing of topics throughout the year
- Cumulative data summary of level of mastery for covered skills
About the Teacher
Mrs. Lalanne is a certified mathematics teacher who teaches calculus and AVID at Richardson High School. She has taught at Richardson High School the past 5 years after receiving her Bachelor and Masters degrees from Austin College in Sherman, TX.
Topics
- Continuity and Discontinuities
- Graphing Rational Functions
- End Behavior
- Analyzing Graphs
- Properties of natural log and e
- Trigonometry
- Simplifying Expressions
- Solving Equations
- Positive, Velocity & Acceleration
Times
Calculus Camp takes place over 4 days
Monday, Aug 6. - Thursday, Aug 9.
Class is progressive. Choose one seesion for the whole week
- Session 1: 10am - 12pm
- Session 2: 2pm - 3pm
- Session 3: 6:30pm - 8:30pm
Details
$275 for the week
Payment due by Monday, July 30
Scholarships available:
Email<EMAIL_ADDRESS>for more information
Location
Epiphany Church at 421 Custer Rd. Richardson, TX


Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas mauris ligula, lobortis sit amet libero eget, accumsan malesuada lectus. Suspendisse potenti. Proin nec purus metus. Integer volutpat at libero in hendrerit. Cras vulputate lorem vel pellentesque tincidunt. Nam pellentesque nunc vel semper dignissim. Duis nulla est, aliquet non tellus a, lacinia dapibus dui.
The Cordillera Studies Center (CSC) came into being in June 1980, when the Board of Regents approved its establishment as the research and extension arm of the Division of Social Sciences.
Research activities during its first decade focused on highland agriculture using the agro-ecosystem framework; population, resources and environment; and issues in governance and policy. Later, the CSC expanded its research agenda to include studies on women and gender; local economic, political and social institutions; indigenous knowledge and world views; local history, and health. Issues in Cordillera autonomy also became an important component of its research program.
Although the CSC was propelled largely by social science research, it was also able to accommodate the research interests of faculty from the humanities and natural sciences. The move toward greater multi-disciplinary collaboration received an impetus when the CSC began operating as a College Research Center in June 1998.
In December 2002, the University of the Philippines Baguio (UP Baguio) became the 7th constituent university of the UP System. An integral component of the blueprint for UP Baguio as constituent university was the transformation of the CSC into the University Research Center. This was formalized in 2004.
Today, the CSC takes on the mandate to realize the goal of making UP Baguio into the lead institution for research in Northern Luzon.


This allows you to register new reconciliation services based on Apache Stanbol's EntityHub.
So you'd just need to know the URI where Stanbol is running with the necessary indexes for your concrete data, and this process will automatically fetch and register all available reconciliation services.
Read more about Apache Stanbol's EntityHub.


- All accents are typed after the base character — ŝ is typed s then Left-bracket [
- To type the acute accent ́ use either the Slash key / — á is typed a then Slash
- To type the circumflex accent ̂ use the Left-bracket [ — . ŝ is typed s then Left-bracket [
- You can type the English value of the punctuation keys by holding down the Right-Alt or Option key. The Semicolon ; is typed Right-Alt+Semicolon (Windows) Option+Semicolon (Mac).
- Opening and closing quotes. For Mac users, Right-Alt is either of the Option Keys.
- single: ‘ Shift+Grave — ’ Apostrophe
- double: “ Shift+Left-Bracket — ” Shift+Right-Bracket
- single ‹ Right-Alt+Shift+9 — › Right-Alt+Shift+0<
- double « Right-Alt+9 — » Right-Alt+0


Make food from home made by Mak Gemi. Tanjung, Tabalong, South Borneo.
Main Course for now is Fruit Salad
Whatsapp/Phone Call<PHONE_NUMBER>66
Facebook
Yeppo's
Kitchen
Instagram
@yepposkitchen


This is the best sleep tracker app ever. It will allow you to find out how many hours of sleep you really need! It has an awesome emoji-based score system as well as nice graphs.
Acording to studies sleep is very very important. You can learn how sleep is your super power in this video. By now you know you should sleep more and better. For that reason we introduce to you our awesome app to help you track your sleeping hours
We have a few charts! Quickly see how much you slept during last week.
Everyone makes mistakes, unlike life we allow you to edit your mistakes.
We make it quick by using an emoji-based entry system.
You put the info and we do the hard work. We calculate how many hours you slept
In todays day platforms should be available everywhere and easy to use. We make it easy for you to access your data eveywhere. Got to work and remembered you didnt fill in your sleep data? No worries, just open your browser and fill it in. We will sync across devices.


Active value is {{activeHttps}}
.
Serve the user interface over HTTPS. The certificate and private key to be used must be placed in
{{confDirs[0]}},
either {{confDirs[0]}} or {{confDirs[1]}},
either {{confDirs[0]}}, {{confDirs[1]}} or {{confDirs[2]}},
either {{confDirs[0]}}, {{confDirs[1]}}, {{confDirs[2]}}
or {{confDirs[3]}},
with filenames
ui-cert.pem and
ui-key.pem before enabling
HTTPS, where ui-cert.pem is a PEM encoded X.509 certificate chain, and ui-key.pem is a PEM encoded PKCS#8
private key without a passphrase.
(for example, a self signed certificate can be generated at the command line meeting the above requirements
using OpenSSL 1.0.0 or later:
openssl req -new -x509 -nodes -days 365 -out ui-cert.pem -keyout ui-key.pem)


Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page.
Requires a signed-in GitHub account. This works well for small changes.
If you'd like to make larger changes you may want to consider using
a local clone.
 Page Not Found
Operator Overloading
Organizations using the D Language
Overview
Portability
Pragmas
Programming in D for C Programmers
Programming in D for C++ Programmers
Promoting D Projects (or Internet Marketing 101)
Properties
Pull-Request/Issue Manager Responsibilities
Rationale
rdmd
Real Close to the Machine: Floating Point in D
Regular Expressions
Resources
SafeD
Search
Statements
String Mixins
Structs, Unions
Table of Contents
Template Comparison
Template Constraints
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Templates
Templates Revisited
The C Preprocessor vs D
The D Bug Tracker
The D Language Foundation
The D Style
The DLang UPB Languages and Systems Research Scholarship
Traits
Tuples
Type Qualifiers
Types
Unit Tests
Variadic Templates
Vector Extensions
Warnings
Windows Programming
Word Count
Writing Shared Libraries With D On Linux
Copyright © 1999-2023 by the D Language Foundation | Page generated by
Ddoc on Wed Mar 1 14:57:15 2023


India Yamaha Motor launches BS-VI compliant variants of bikes
The company will further announce the launch of other BS-VI compliant line-ups in the coming time
by PTIIndia Yamaha Motor (IYM) on November 8 launched BS-VI compliant variants of FZ-FI and FZS-FI bikes, priced between Rs 99,200 and Rs 1.02 lakh (ex-showroom).
The company will further announce the launch of other BS-VI compliant line-ups in the coming time, IYM said in a statement.
The new FZ-FI and FZS-FI BS VI versions come with various features like single channel ABS in the front wheel, front and rear disc brakes along with a single piece two level seat.
Close
"As Yamaha reveals from its new product line-up, the BS-VI compliant FZ motorcycles will be available across Yamaha showrooms from November 2019," Yamaha Motor India Chairman Motofumi Shitara said.Get access to India's fastest growing financial subscriptions service Moneycontrol Pro for as little as Rs 599 for first year. Use the code "GETPRO". Moneycontrol Pro offers you all the information you need for wealth creation including actionable investment ideas, independent research and insights & analysis For more information, check out the Moneycontrol website or mobile app.


pybind_signatures module
pybind11 function signature extraction
Classes
Functions
- def crazy_signature(…)
- Function that failed to get parsed
- def duck(*args, **kwargs) -> None
- A function taking args/kwargs directly
- def escape_docstring(arg0: int, /) -> None
- A docstring that should be escaped
- def failed_parse_docstring(…)
- A failed parse should also escape the docstring
- def full_docstring(arg0: int, /) -> None
- A summary
- def full_docstring_overloaded(arg0: int, arg1: int, /) -> None
- An overload summary
- def full_docstring_overloaded(arg0: float, arg1: float, /) -> None
- Another overload summary
- def overloaded(arg0: int, /) -> str
- Overloaded for ints
- def overloaded(arg0: float, /) -> bool
- Overloaded for floats
- def scale(arg0: int, arg1: float, /) -> int
- Scale an integer
- def scale_kwargs(a: int, argument: float) -> int
- Scale an integer, kwargs
- def takes_a_function(arg0: typing.Callable[[float, typing.List[float]], int], /) -> None
- A function taking a Callable
- def takes_a_function_returning_none(arg0: typing.Callable[[], None], /) -> None
- A function taking a Callable that returns None
- def taking_a_list_returning_a_tuple(arg0: typing.List[float], /) -> typing.Tuple[int, int, int]
- Takes a list, returns a tuple
- def tenOverloads(arg0: float, arg1: float, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: int, arg1: float, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: bool, arg1: float, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: float, arg1: int, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: int, arg1: int, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: bool, arg1: int, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: float, arg1: bool, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: int, arg1: bool, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: bool, arg1: bool, /) -> None
- Ten overloads of a function
- def tenOverloads(arg0: str, arg1: str, /) -> None
- Ten overloads of a function
- def void_function(arg0: int, /) -> None
- Returns nothing
Function documentation
def pybind_signatures. full_docstring(arg0: int, /) -> None
A summary
And a larger docstring as well.
def pybind_signatures. full_docstring_overloaded(arg0: int,
arg1: int, /) -> None
An overload summary
This function takes a value of 2. full_docstring_overloaded(a: float, b: float) takes just 3 instead.
def pybind_signatures. full_docstring_overloaded(arg0: float,
arg1: float, /) -> None
Another overload summary
This overload, however, takes just a 32-bit (or 64-bit) floating point value of 3. full_docstring_overloaded(a: int, b: int) takes just 2. There's nothing for 4. full_docstring_overloaded(a: poo, b: foo) could be another, but it's not added yet.


1)
The ballerinas
gracefully for the stage show.
2)
Mrs. Smith
Italian food for dinner last night.
3)
The courier was
at 10 o’clock in the morning.
4)
A beautiful princess
in the castle.
5)
The children
water in the pool.
6)
The baby
at its mother continuously.
7)
Mom
to take us to the circus on Saturday.
8)
Sally
a sandcastle at the seashore.


.
.
https://www.freecodecamp.com
.
.
[html5/css3]
.
.
01-Say Hello to HTML Elements.html
02-Headline with the h2 Element.html
03-Inform with the Paragraph Element.html
04-uncomment.html
05-comment-out-html.html
06-fill-in-the-blank-with-placeholder-text.html
07-delete-html-elements.html
08-change-the-color-of-text.html
09-use-css-selectors-to-style-elements.html
10-use-a-css-class-to-style-an-element.html
11-style-multiple-elements-with-a-css.html
12-change-the-font-size-of-an-element.html
13-set-the-font-family-of-an-element.html
14-import-a-google-font.html
15-specify-how-fonts-should-degrade.html
16-add-images-to-your-website.html
17-size-your-images.html
18-add-borders-around-your-elements.html
19-add-rounded-corners-with-a-border-radius.html
20-make-circular-images-with-a-border-radius.html
21-link-to-external-pages-with-anchor-elements.html
22.nest-an-anchor-element-within-a-paragraph.html
23-make-dead-links-using-the-hash-symbol.html
24-turn-an-image-into-a-link.html
25-create-a-bulleted-unordered-list.html
26-create-an-ordered-list.html
27-create-a-text-field.html
28-add-placeholder-text-to-a-text-field.html
29-create-a-form-element.html
30-add-a-submit-button-to-a-form.html
31-use-html5-to-require-a-field.html
32-create-a-set-of-radio-buttons.html
33-create-a-set-of-checkboxes.html
34-check-radio-buttons-and-checkboxes-by-default.html
35-nest-many-elements-within-a-single-div-element.html
36-give-a-background-color-to-a-div-element.html
37-set-the-id-of-an-element.html
38-use-an-id-attribute-to-style-an-element.html
39-adjusting-the-padding-of-an-element.html
40-adjust-the-margin-of-an-element.html
41-add-a-negative-margin-to-an-element.html
42-add-different-padding-to-each-side-of-an-element.html
43-add-different-margins-to-each-side-of-an-element.html
44-use-clockwise-notation-to-specify-the-padding-of-an-element.html
45-use-clockwise-notation-to-specify-the-margin-of-an-element.html
46-style-the-html-body-element.html
47-inherit-styles-from-the-body-element.html
48-prioritize-one-style-over-another.html
49-override-styles-in-subsequent-css.html
50-override-class-declarations-by-styling-id-attributes.html
51-override-class-declarations-with-inline-styles.html
52-override-all-other-styles-by-using-important.html
53-use-hex-code-for-specific-colors.html
54-use-hex-code-to-mix-colors.html
55-use-abbreviated-hex-code.html
56-use-rgb-values-to-color-elements.html
57-use-rgb-to-mix-colors.html


---
layout: post
mathjax: true
comments: true
date: 2012-12-25
title: [Project Euler] #23 Solution
excerpt: |
This page presents a Ruby solution to Project Euler Problem 23.
tags:
- project euler problem 23 solution
- project euler problem 23 answer
- project euler problem 23 ruby
---
Overview
Question
A perfect number is a number for which the sum of its proper divisors is
exactly equal to the number. For example, the sum of the proper divisors
of 28 would be 1 + 2 + 4 + 7 + 14 = 28, which means that 28 is a perfect
number.
A number n is called deficient if the sum of its proper divisors is less
than n and it is called abundant if this sum exceeds n.
As 12 is the smallest abundant number, 1 + 2 + 3 + 4 + 6 = 16, the
smallest number that can be written as the sum of two abundant numbers
is 24. By mathematical analysis, it can be shown that all integers
greater than 28123 can be written as the sum of two abundant numbers.
However, this upper limit cannot be reduced any further by analysis even
though it is known that the greatest number that cannot be expressed as
the sum of two abundant numbers is less than this limit.
Find the sum of all the positive integers which cannot be written as the
sum of two abundant numbers.
click for answer
4179871
Solutions
Ruby
{% highlight ruby %} p23.rb https://raw.github.com/addamh/euler/master/023/p23.rb download
#!/usr/bin/env ruby
require 'mathn'
class Integer
def factors
return [1] if self == 1
primes, powers = self.prime_division.transpose
exponents = powers.map{|i| (0..i).to_a}
divisors = exponents.shift.product(*exponents).map do |powers|
primes.zip(powers).map{|prime, power| prime ** power}.inject(:*)
end
divisors.slice(0, divisors.length-1)
end
def abundant?
factors.reduce(:+) > self
end
end
range = (1..20161)
abundants = range.select { |n| n.abundant? }
sums = []
abundants.each do |x|
abundants.sort!.each do |y|
a = x + y
sums.push a unless a > 20161
end
end
p (range.to_a - sums.uniq!.sort).reduce(:+)
{% endhighlight %}
{% highlight console %}
$ time ruby p23.rb
real 0m15.572s
user 0m15.397s
sys 0m0.114s
{% endhighlight %}


Jeffree Star had a marijuana-themed birthday party to celebrate turning 34, Business Insider - Business Insider Singapore
by Amanda Krause- Jeffree Star celebrated his 34th birthday on Friday with a marijuana-themed party.
- The party was decorated with rose bouquets, balloon arches, and dessert tables covered in pink candy.
- YouTubers like Shane Dawson and Ryland Adams were in attendance, as was Star’s longtime boyfriend Nathan Schwandt.
- After the party, Star boarded what appears to have been a private plane for a week-long vacation in Bora Bora.
- Visit Insider’s homepage for more stories.
Jeffree Star celebrated his recent birthday with some of his favorite things: friends, family, and lots of marijuana.
The beauty mogul turned 34 on Friday, and attended a birthday party held in his home state of California. Fellow YouTubers like Shane Dawson and Ryland Adams were in attendance, as was Star’s longtime boyfriend, Nathan Schwandt.

Jeffree Star shared numerous photos and videos from his birthday party on Instagram
He first posted a video of a flower arrangement designed to look like a pink marijuana leaf on his Instagram story.
“Oh my god, this also just came,” Star said about the flowers on Instagram. “A hot-pink marijuana leaf made entirely out of flowers – I’m shook. This is so beautiful, oh my god.”
He later shared a snapshot of himself with Dawson, Adams, and Schwandt at his birthday party. Behind them was a pink balloon arch, and multiple rose bouquets arranged to look like stars.
At one point during the party, Star and Schwandt thanked their guests while seemingly smoking a joint together.
According to Madison Taylor, Star’s assistant, his marijuana-themed cake was created by Carlo’s Bakery, while the flower arrangements at his party were designed by artist Jeff Leatham.
She also shared a photo of a dessert table at Star’s party, which was covered in roses, chocolate-covered strawberries, and candy.
Star made sure to update his fans after his party was over
On Saturday, Star tweeted that he was a fan of his birthday cake.
He also said he was “still high” from his birthday festivities.
Though his birthday might be over, Star isn’t done celebrating
On Sunday, Star and his closest friends boarded what appears to have been a private flight. According to the YouTuber, their destination was Bora Bora.
Still, Star hasn’t stopped working while celebrating. Not only did he upload a new makeup review on Saturday, but he also shared some insight into the finale of his YouTube series with Shane Dawson.
“Hi #BoraBora How Are Ya?” Star wrote on Instagram. “Just landed in paradise to celebrate my birthday all week and I’m so happy to be back to my favorite place on the planet. PS. The next episode aka the finale of my series w Shane Dawson will be out this week!”
- Read more:
- The surprising real names of 14 popular beauty influencers
- James Charles will host a beauty-influencer competition show on YouTube where the winner takes home $50,000
- Here’s everything featured in Jaclyn Hill’s holiday makeup collection
- 16 of the most shocking beauty YouTube transformations of all time


StoreType
public protocol StoreType : ActionHandler, StateProvider
A protocol that defines the two expected roles of a “Store”: receive/distribute actions (ActionHandler
); and publish changes of the the
current app state (StateProvider
) to possible subscribers. It can be a real store (such as ReduxStoreBase
) or just a “proxy” that acts on
behalf of a real store, for example, in the case of StoreProjection
.
-
projection(action:
Extension methodstate: ) Creates a subset of the current store by applying any transformation to the State or Action types.
Declaration
Swift
public func projection<ViewAction, ViewState>( action viewActionToGlobalAction: @escaping (ViewAction) -> ActionType?, state globalStateToViewState: @escaping (StateType) -> ViewState ) -> StoreProjection<ViewAction, ViewState>
Parameters
action
a closure that will transform the View Actions into global App Actions, to be dispatched in the original Store
state
a closure that will transform the global App State into the View State, to subscribe the original Store and drive the View upon changes
Return Value
a
StoreProjection
struct, that uses the original Store under the hood, by applying the required transformations on state and action when app state changes or view actions arrive. It doesn’t store anything, just proxies the original store. -
eraseToAnyStoreType()
Extension methodType-erasure for the protocol
StoreType
.For more information please check the protocol documentation.
Declaration
Swift
public func eraseToAnyStoreType() -> AnyStoreType<ActionType, StateType>
Return Value
a type-erased store (
AnyStoreType
) from the currentStoreType
-
contramapAction(_:
Extension method) Create another
StoreType
that handles a different type of Action. The original store will be used behind the scenes, by only the provided “transform” closure whenever an action arrives.Declaration
Swift
public func contramapAction<NewActionType>(_ transform: @escaping (NewActionType) -> ActionType) -> AnyStoreType<NewActionType, StateType>
Parameters
transform
a closure that will be executed every time an action arrives at the proxy
StoreType
, so we can map it into the expected action type of the originalStoreType
.Return Value
an
AnyStoreType
with sameStatetype
but differentActionType
than the original store. -
mapState(_:
Extension method) Create another
StoreType
that handles a different type of State. The original store will be used behind the scenes, by only applying the provided “transform” closure whenever the state changes in the original store.Declaration
Swift
public func mapState<NewStateType>(_ transform: @escaping (StateType) -> NewStateType) -> AnyStoreType<ActionType, NewStateType>
Parameters
transform
a closure that will be executed every time the state changes in the original store, so we can map it into the state type expected by the subscribers of the proxy
StoreType
.Return Value
an
AnyStoreType
with sameActionType
but differentStateType
than the original store.


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Script Usage¶
The GMAT API can be used as a front end for driving the GMAT application in a “headless” mode.  This section introduces the API features that make these processes possible.
API Functions for Script Users¶
The GMAT API includes five functions, shown in Table 9 specifically designed for script based usage.
Function |
Example |
Return Value |
Description |
|---|---|---|---|
LoadScript |
LoadScript(“script”) |
bool |
Loads a script into the GMAT system |
RunScript |
RunScript() |
bool |
Runs a loaded script |
SaveScript |
SaveScript(“script”) |
bool |
Saves the configured objects to a file |
GetRuntimeObject |
GetRuntimeObject (“Sat”) |
GmatBase* |
Retrieves an object from a GMAT run |
GetRunSummary |
GetRunSummary() |
String |
Retrieves a listing of the spacecraft data from a script run for each command in the script |
Background: The GMAT Run Script Process¶
In GMAT, when a user runs a script three steps are taken:
The script is read and GMAT objects are created that match the objects described by the script.
GMAT Resources are stored in the GMAT Configuration.
GMAT Commands are connected together to create the Mission Control Sequence.
The objects from the script are copied (“cloned”) into a memory location, the Sandbox, used for the run.
This creates a new set of objects used for the run.
After cloning, these run time objects are connected together as needed and initialized.
The Mission Control Sequence is executed sequentially, starting from the first command in the sequence. Command execution manipulates the run time objects to simulate the scripted mission.
API users drive this process using the functions in Table 9.
Driving a Script From the API¶
API users take the following steps to execute a script:
Start the API environment (e.g. Python or MATLAB) from the GMAT bin directory or start the application and change the current directory to the GMAT bin directory.
Load GMAT into the environment. The MATLAB implementation includes a scripted function for this process.
Python: import gmatpy
MATLAB: load_gmat()
Read a script into the loaded GMAT engine.
Python: gmatpy.LoadScript(script_path_and_name)
MATLAB: gmat.gmat.LoadScript(script_path_and_name)
Run the script. This step performs the run time object cloning and initialization and then executes the Mission Control Sequence.
Python: gmatpy.RunScript()
MATLAB: gmat.gmat.RunScript()
Examples¶
The sections above describe in general terms how to run GMAT scripts from the API. The following sample usage shows these features in Python and MATLAB.
Example: Running a Sample Mission¶
The first example shows how to run a sample mission from the API and retrieve data generated from the run. The example runs the sample mission Ex_GEOTransfer.script in the GMAT samples folder, then accesses the targeted maneuvers from the script and computes the total delta-V needed for the run.
Python¶
Use of the API in Python is performed through direct calls to the functions described above.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | $ python3
Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import gmatpy as gmat
>>> gmat.LoadScript("../samples/Ex_GEOTransfer.script")
True
>>> gmat.RunScript()
True
>>> TOI = gmat.GetRuntimeObject("TOI")
>>> MCC = gmat.GetRuntimeObject("MCC")
>>> MOI = gmat.GetRuntimeObject("MOI")
>>> toidv = float(TOI.GetField("Element1"))
>>> mccdv = (float(MCC.GetField("Element1"))**2+float(MCC.GetField("Element2"))**2)**0.5
>>> moidv = float(MOI.GetField("Element1"))
>>> deltaV = abs(toidv)+mccdv+abs(moidv)
>>> print("Total Delta-V Cost: ", deltaV, " km/s")
Total Delta-V Cost: 4.394839062410714 km/s
>>> exit()
|
MATLAB¶
Loading the GMAT API in MATLAB is a moderately complicated procedure, so the API developers have wrapped the load process in a MATLAB function, load_gmat.m. The function takes two optional arguments: the name of a script, and the startup file used to initialize GMAT. The example shown below leaves both inputs blank so that it closely matches the Python example, above.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | >> load_gmat()
Initialize Moderator Status: 1
No script provided to load.
ans =
Instance of GMAT Moderator is initialized. No script ready to run.
>> gmat.gmat.LoadScript("../samples/Ex_GEOTransfer.script")
ans =
logical
1
>> gmat.gmat.RunScript()
ans =
logical
1
>> TOI = gmat.gmat.GetRuntimeObject("TOI");
>> MCC = gmat.gmat.GetRuntimeObject("MCC");
>> MOI = gmat.gmat.GetRuntimeObject("MOI");
>> toidv = str2num(TOI.GetField("Element1"));
>> mccdv = sqrt(str2num(MCC.GetField("Element1"))^2+str2num(MCC.GetField("Element2"))^2);
>> moidv = str2num(MOI.GetField("Element1"));
>> DeltaV = abs(toidv)+mccdv+abs(moidv)
DeltaV =
4.394839062410714
>> exit
|


The Prospect Park Zoo is a 12-acre zoo located off Flatbush Avenue on the eastern side of Prospect Park, Brooklyn, New York City. The zoo is open 365 days a year, and the animals are on exhibit all year round.
Our current hours are Monday, Nov 7, 2016 - Friday, Mar 31, 2017 Daily 10:00 AM - 4:30 PM
Animals exhibited range from African Brush-Tailed Porcupines to Wreathed Hornbills.
The Prospect Park Zoo presently offers children's educational programs, is engaged in restoration of endangered species populations, runs a wildlife theater and reaches out to the local community through volunteer programs.
Getting ready for your visit to the Prospect Park Zoo is quick and easy. All purchases give you instant park access. Just show your phone or print at home.
Purchase Tickets Online| Admittee | Price |
|---|---|
| Adult | $8 |
| Child 3-12 | $5 |
| Child 2 & under | $6 |
| Senior | FREE |
Feel free to call us or email us to ask any questions you have for us, tell us about your visit, or to just say hello!


Before Change
minimum_owner_count = max(len(users), minimum_owner_count)
packages = sorted(all_packages())
banner("Checking package ownership for {} packages".format(len(packages)))
users = set(user.lower() for user in users)
insufficient = set()
unowned = dict()
def check_ownership(i, package):
After Change
minimum_owner_count = max(len(users), minimum_owner_count)
packages = sorted(all_packages())
banner("Checking package ownership for {} packages".format(len(packages)))
users = {user.lower() for user in users}
insufficient = set()
unowned = dict()
def check_ownership(i, package):