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gsl_sf_ellint_P
- From: Andras Zsenei <zseneia at mail dot cern dot ch>
- To: gsl-discuss at sources dot redhat dot com
- Date: Thu, 11 Nov 2004 15:43:26 +0100 (CET)
- Subject: gsl_sf_ellint_P
- Keywords: CERN SpamKiller Note: -50 Charset: west-latin
Hi,
I have a question concerning gsl_sf_ellint_P.
In some places (Abramowitz and Stegun, Mathematica) it is defined with
(1 - nu sin^2theta) in the denominator. However, your definition in the
Legendre form contains (1 + nu sin^2theta). What is the reason of having a
+ sign instead of a - ?
Cheers
Andras