EXPINT(3pm)
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
- 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_E1 does not process bad values. It will set the badvalue flag of all output piddles if the flag is set for any of the
input piddles. - 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_E2 does not process bad values. It will set the badvalue flag of all output piddles if the flag is set for any of the
input piddles. - 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_expint_Ei does not process bad values. It will set the badvalue flag of all output piddles if the flag is set for any of the
input piddles. - gsl_sf_Shi
- Signature: (double x(); double [o]y(); double [o]e())
- Shi(x) := Integrate[ Sinh[t]/t, {t,0,x}]
- gsl_sf_Shi does not process bad values. It will set the bad-value flag of all output piddles if the flag is set for any of the input piddles.
- 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_Chi does not process bad values. It will set the bad-value flag of all output piddles if the flag is set for any of the input piddles.
- 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_expint_3 does not process bad values. It will set the bad-value
flag of all output piddles if the flag is set for any of the input
piddles. - gsl_sf_Si
- Signature: (double x(); double [o]y(); double [o]e())
- Si(x) := Integrate[ Sin[t]/t, {t,0,x}]
- gsl_sf_Si does not process bad values. It will set the bad-value flag of all output piddles if the flag is set for any of the input piddles.
- gsl_sf_Ci
- Signature: (double x(); double [o]y(); double [o]e())
- Ci(x) := -Integrate[ Cos[t]/t, {t,x,Infinity}]
- gsl_sf_Ci does not process bad values. It will set the bad-value flag of all output piddles if the flag is set for any of the input piddles.
- gsl_sf_atanint
- Signature: (double x(); double [o]y(); double [o]e())
- AtanInt(x) := Integral[ Arctan[t]/t, {t,0,x}]
- gsl_sf_atanint does not process bad values. It will set the bad-value
flag of all output piddles if the flag is set for any of the input
piddles.
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.