NAME

Math::GSL::Diff - Numerical differentiation routines

SYNOPSIS

use Math::GSL::Diff qw/:all/;

DESCRIPTION

Here is a list of all the functions included in this module :

gsl_diff_central

This function computes the numerical derivative of the function f at the point x using an adaptive central difference algorithm. The result is an array where the first position is an error code (0 for success), the second is derivative value, and the third is an estimate of its absolute error.

my ($success, $result, $error) =
      gsl_diff_central(sub { return $_[0] ** 1.5 }, 2.0);

gsl_diff_backward

This function computes the numerical derivative of the function f at the point x using an adaptive forward difference algorithm. Its usage is similar to gsl_diff_central.

my ($success, $result, $error) =
       gsl_diff_backward(sub { return $_[0] ** 1.5 }, 0.0);

gsl_diff_forward

This function computes the numerical derivative of the function f at the point x using an adaptive backward difference algorithm. Its usage is similar to gsl_diff_central.

my ($success, $result, $error) =
       gsl_diff_forward(sub { return $_[0] ** 1.5 }, 1.0);

EXAMPLES

AUTHORS

Jonathan "Duke" Leto <jonathan@leto.net> and Thierry Moisan <thierry.moisan@gmail.com>

COPYRIGHT AND LICENSE

Copyright (C) 2008-2011 Jonathan "Duke" Leto and Thierry Moisan

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.