Oh wisest perl monks,

I'm trying to do some oh-so-simple matrix calculations with Math::Matrix, but the usage of the major functions (cross_product, dot_product, etc) are poorly documented on CPAN, so I'm not sure if I'm even calling them properly.
http://search.cpan.org/~ulpfr/Math-Matrix-0.5/Matrix.pm

Most other functions work, such as print, transpose, etc, but none of the more useful algorithms return anything.

Does anyone have any experience with this? Am I even asking in the right forum?

Here's what I've tried so far: 
#! /usr/bin/perl

        use Math::Matrix;

        $a = new Math::Matrix ([1], [2], [3]);
        $x = new Math::Matrix ([4], [5], [6]);

        $a->print("A\n");
        $x->print("X\n");

        $f = $a->cross_product( $x );
        print "output of a->cross_product( x ) is: '$f'\n\n";
        if( defined( $f ) ) { $f->print( "Cross product is \n" ) };

        $f = $a->cross_product( $a, $x );
        print "output of a->cross_product( a, x ) is: '$f'\n\n";
        if( defined( $f ) ) { $f->print( "Cross product is \n" ) };

[download]


Script outputs: 
$ mathtest.pl 
A
   1.00000 
   2.00000 
   3.00000 
X
   4.00000 
   5.00000 
   6.00000 
output of a->cross_product( x ) is: ''

output of a->cross_product( a, x ) is: ''

[download]

Any help would be much appreciated. Thanks!!

Ryan

In reply to Math::Matrix anyone? by GeoBoater

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