NAME

Math::GSL::SparseMatrix - Sparse Matrices

SYNOPSIS

use Math::GSL::SparseMatrix qw/:all/;
use Math::GSL::Matrix qw/gsl_matrix_alloc/;
my $sparse = gsl_spmatrix_alloc(100,100);
my $status = gsl_spmatrix_set($sparse,50,50,42.42);
my $value  = gsl_spmatrix_get($sparse,50,50);

# multiply every element by 5
$status = gsl_spmatrix_scale($sparse, 5);

# get the number of non-zero elements
my $nnz = gsl_spmatrix_nnz($sparse);

# fine min and max values, other than zero elements
($status, $min, $max) = gsl_spmatrix_minmax($sparse);

# set all elements to zero
$status = gsl_spmatrix_set_zero($sparse);

my $dense  = gsl_matrix_alloc(100,100);
# convert a sparse matrix to a dense matrix
$status = gsl_spmatrix_sp2d($dense, $sparse);

# convert a dense matrix to a sparse matrix
$status = gsl_spmatrix_d2sp($sparse, $dense);

DESCRIPTION

NOTE: This module requires GSL 2.0 or higher.

For more informations on the functions, we refer you to the GSL official documentation: http://www.gnu.org/software/gsl/manual/html_node/

AUTHORS

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

COPYRIGHT AND LICENSE

Copyright (C) 2008-2024 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.