Eric Prescott-Gagnon created MATH-1318:
------------------------------------------
Summary: Implement reflection formula to digamma function to
improve performance on negative values.
Key: MATH-1318
URL: https://issues.apache.org/jira/browse/MATH-1318
Project: Commons Math
Issue Type: Improvement
Reporter: Eric Prescott-Gagnon
Priority: Minor
The performance of the digamma(x) function is in O(|x|) for negative values.
Implementing the reflection formula
(https://en.wikipedia.org/wiki/Digamma_function#Reflection_formula) can improve
the performance in that case.
github pull request: https://github.com/apache/commons-math/pull/23
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
