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RedHat 9 (Linux i386) - man page for pdl::gslsf::expint (redhat section 3)

EXPINT(3)						User Contributed Perl Documentation						 EXPINT(3)

NAME
PDL::GSLSF::EXPINT - PDL interface to GSL Special Functions
DESCRIPTION
This is an interface to the Special Function package present in the GNU Scientific Library.
SYNOPSIS
Functions
FUNCTIONS
gsl_sf_expint_E1 Signature: (double x(); double [o]y(); double [o]e()) E_1(x) := Re[ Integrate[ Exp[-xt]/t, {t,1,Infinity}] ] gsl_sf_expint_E2 Signature: (double x(); double [o]y(); double [o]e()) E_2(x) := Re[ Integrate[ Exp[-xt]/t^2, {t,1,Infity}] ] gsl_sf_expint_Ei Signature: (double x(); double [o]y(); double [o]e()) Ei(x) := PV Integrate[ Exp[-t]/t, {t,-x,Infinity}] gsl_sf_Shi Signature: (double x(); double [o]y(); double [o]e()) Shi(x) := Integrate[ Sinh[t]/t, {t,0,x}] gsl_sf_Chi Signature: (double x(); double [o]y(); double [o]e()) Chi(x) := Re[ M_EULER + log(x) + Integrate[(Cosh[t]-1)/t, {t,0,x}] ] gsl_sf_expint_3 Signature: (double x(); double [o]y(); double [o]e()) Ei_3(x) := Integral[ Exp[-t^3], {t,0,x}] gsl_sf_Si Signature: (double x(); double [o]y(); double [o]e()) Si(x) := Integrate[ Sin[t]/t, {t,0,x}] gsl_sf_Ci Signature: (double x(); double [o]y(); double [o]e()) Ci(x) := -Integrate[ Cos[t]/t, {t,x,Infinity}] gsl_sf_atanint Signature: (double x(); double [o]y(); double [o]e()) AtanInt(x) := Integral[ Arctan[t]/t, {t,0,x}]
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. The GSL SF modules were written by G. Jungman. perl v5.8.0 2003-01-29 EXPINT(3)

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