Make internal helper class package-private
@@ -21,7 +21,7 @@ package org.apache.commons.numbers.gamma;
*
* @since 1.1
*/
-public final class SpecialMath {
+final class SpecialMath {
/** Minimum x for log1pmx(x). */
private static final double X_MIN = -1;
/** Low threshold to use log1p(x) - x. */
