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Chris Marshall
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NAME

PDL::GSLSF::TRIG - 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_sin

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

Sin(x) with GSL semantics.

gsl_sf_cos

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

Cos(x) with GSL semantics.

gsl_sf_hypot

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

Hypot(x,xx) with GSL semantics.

gsl_sf_complex_sin

  Signature: (double zr(); double zi(); double [o]x(); double [o]y(); double [o]xe(); double [o]ye())

Sin(z) for complex z

gsl_sf_complex_cos

  Signature: (double zr(); double zi(); double [o]x(); double [o]y(); double [o]xe(); double [o]ye())

Cos(z) for complex z

gsl_sf_complex_logsin

  Signature: (double zr(); double zi(); double [o]x(); double [o]y(); double [o]xe(); double [o]ye())

Log(Sin(z)) for complex z

gsl_sf_lnsinh

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

Log(Sinh(x)) with GSL semantics.

gsl_sf_lncosh

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

Log(Cos(x)) with GSL semantics.

gsl_sf_polar_to_rect

  Signature: (double r(); double t(); double [o]x(); double [o]y(); double [o]xe(); double [o]ye())

Convert polar to rectlinear coordinates.

gsl_sf_rect_to_polar

  Signature: (double x(); double y(); double [o]r(); double [o]t(); double [o]re(); double [o]te())

Convert rectlinear to polar coordinates. return argument in range [-pi, pi].

gsl_sf_angle_restrict_symm

  Signature: (double [o]y())

Force an angle to lie in the range (-pi,pi].

gsl_sf_angle_restrict_pos

  Signature: (double [o]y())

Force an angle to lie in the range [0,2 pi).

gsl_sf_sin_err

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

Sin(x) for quantity with an associated error.

gsl_sf_cos_err

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

Cos(x) for quantity with an associated error.

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.