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ERF


NAME

PDL::GSLSF::ERF - 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_erfc

  Signature: (double x(); double [o]y(); double [o]e())

Complementary Error Function erfc(x) := 2/Sqrt[Pi] Integrate[Exp[-t^2], {t,x,Infinity}]

gsl_sf_erfc 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_log_erfc

  Signature: (double x(); double [o]y(); double [o]e())

Log Complementary Error Function

gsl_sf_log_erfc 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_erf

  Signature: (double x(); double [o]y(); double [o]e())

Error Function erf(x) := 2/Sqrt[Pi] Integrate[Exp[-t^2], {t,0,x}]

gsl_sf_erf 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_erf_Z

  Signature: (double x(); double [o]y(); double [o]e())

Z(x) : Abramowitz+Stegun 26.2.1

gsl_sf_erf_Z 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_erf_Q

  Signature: (double x(); double [o]y(); double [o]e())

Q(x) : Abramowitz+Stegun 26.2.1

gsl_sf_erf_Q 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.