[Patches] [ python-Patches-660618 ] math.loggamma(z)

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Patches item #660618, was opened at 2003-01-01 03:21
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=305470&aid=660618&group_id=5470

Category: Modules
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Raymond Hettinger (rhettinger)
Assigned to: Tim Peters (tim_one)
Summary: math.loggamma(z)

Initial Comment:
Add a function to compute ln(gamma(z)).  It's fast 
and easy to compute but is a major PITA when you 
need it and don't have it available.

It is useful by itself, for factorials, binomial 
coefficients, combinatorics, and for computing the 
beta function.

I'm not for growing the mathmodule by much, but 
this and an incomplete gamma are a fine pair of 
basic building blocks and belong in the tool chest.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=305470&aid=660618&group_id=5470