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 information 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) 2008-2021 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.