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) 2008-2021 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.