## table of contents

- bullseye 1:2.025-1
- testing 1:2.080-3+b1
- unstable 1:2.081-1
- experimental 1:2.081-1~exp1

HYPERG(3pm) | User Contributed Perl Documentation | HYPERG(3pm) |

# NAME¶

PDL::GSLSF::HYPERG - PDL interface to GSL Special Functions

# DESCRIPTION¶

This is an interface to the Special Function package present in the GNU Scientific Library.

# FUNCTIONS¶

## gsl_sf_hyperg_0F1¶

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

/* Hypergeometric function related to Bessel functions 0F1[c,x] = Gamma[c] x^(1/2(1-c)) I_{c-1}(2 Sqrt[x]) Gamma[c] (-x)^(1/2(1-c)) J_{c-1}(2 Sqrt[-x])

gsl_sf_hyperg_0F1 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.

## gsl_sf_hyperg_1F1¶

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

Confluent hypergeometric function for integer parameters. 1F1[a,b,x] = M(a,b,x)

gsl_sf_hyperg_1F1 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.

## gsl_sf_hyperg_U¶

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

Confluent hypergeometric function for integer parameters. U(a,b,x)

gsl_sf_hyperg_U 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.

## gsl_sf_hyperg_2F1¶

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

Confluent hypergeometric function for integer parameters. 2F1[a,b,c,x]

gsl_sf_hyperg_2F1 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.

## gsl_sf_hyperg_2F1_conj¶

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

Gauss hypergeometric function 2F1[aR + I aI, aR - I aI, c, x]

gsl_sf_hyperg_2F1_conj 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.

## gsl_sf_hyperg_2F1_renorm¶

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

Renormalized Gauss hypergeometric function 2F1[a,b,c,x] / Gamma[c]

gsl_sf_hyperg_2F1_renorm 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.

## gsl_sf_hyperg_2F1_conj_renorm¶

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

Renormalized Gauss hypergeometric function 2F1[aR + I aI, aR - I aI, c, x] / Gamma[c]

gsl_sf_hyperg_2F1_conj_renorm 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.

## gsl_sf_hyperg_2F0¶

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

Mysterious hypergeometric function. The series representation is a divergent hypergeometric series. However, for x < 0 we have 2F0(a,b,x) = (-1/x)^a U(a,1+a-b,-1/x)

gsl_sf_hyperg_2F0 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.

# 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.

2022-10-26 | perl v5.36.0 |