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.IX Title "CLAUSEN 3pm"
.TH CLAUSEN 3pm 2024-02-05 "perl v5.38.2" "User Contributed Perl Documentation"
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.SH NAME
PDL::GSLSF::CLAUSEN \- PDL interface to GSL Special Functions
.SH DESCRIPTION
.IX Header "DESCRIPTION"
This is an interface to the Special Function package present in the GNU Scientific Library.
.SH FUNCTIONS
.IX Header "FUNCTIONS"
.SS gsl_sf_clausen
.IX Subsection "gsl_sf_clausen"
.Vb 1
\&  Signature: (double x(); double [o]y(); double [o]e())
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.PP
Clausen Integral. Cl_2(x) := Integrate[\-Log[2 Sin[t/2]], {t,0,x}]
.PP
gsl_sf_clausen does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SH AUTHOR
.IX Header "AUTHOR"
This file copyright (C) 1999 Christian Pellegrin <chri@infis.univ.trieste.it>
All rights reserved. There
is no warranty. You are allowed to redistribute this software /
documentation under certain conditions. For details, see the file
COPYING in the PDL distribution. If this file is separated from the
PDL distribution, the copyright notice should be included in the file.
.PP
The GSL SF modules were written by G. Jungman.