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From: Gerard Jungman <jungman@lanl.gov>
To: Brian Gough <bjg@network-theory.co.uk>
Cc: Giorgio.Levy@physics.unige.ch, gsl-discuss@sources.redhat.com
Subject: Re: Complex Digamma function in gsl
Date: Wed, 31 May 2006 11:44:00 -0000	[thread overview]
Message-ID: <1149031057.2673.12.camel@bellerophon.lanl.gov> (raw)
In-Reply-To: <17528.22338.350135.46995@hp2.network-theory.co.uk>

On Sat, 2006-05-27 at 14:42 +0100, Brian Gough wrote:
> 
> Jerry, what's your opinion on the CPSI routine in SLATEC?  It looks
> fairly simple.

I looked at it; it's simple enough, once you get past the
fortran kookiness. One reason I never did a complex version
was that I wanted to also have complex versions for the
general polygamma functions (not just the first), and I
was too tired to do all of that.

But since there is some demand, I have now implemented
psi(z) for complex z. It is checked into CVS, but it
is not tested yet. The problem is that I cannot get
test_sf.c to build; it fails to find some symbols
from the library for complex math, declared in 
gsl/complex/gsl_complex_math.h.

Brian, can you look at this and figure out what
is going on? If I can get the tests to build, I
can wrap this up.

-- 
Gerard Jungman <jungman@lanl.gov>
Los Alamos National Laboratory

  reply	other threads:[~2006-05-30 23:18 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1148479001.4474661950e5c@webmail.physics.unige.ch>
2006-05-26  8:29 ` Gerard Jungman
2006-05-30 10:55   ` Brian Gough
2006-05-31 11:44     ` Gerard Jungman [this message]
2006-06-01  0:07       ` Brian Gough
2006-06-01 12:25         ` Gerard Jungman

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