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use Test::More tests => 2;
use File::Spec;
use lib File::Spec->catfile("..","lib");
use Math::MatrixReal;
do 'funcs.pl';
$matrix = Math::MatrixReal->new_from_string(<<"MATRIX");
[ 1 0 0 0 ]
[ 0 2 0 0 ]
[ 0 0 3 0 ]
[ 0 0 0 4 ]
MATRIX
$matrix14 = Math::MatrixReal->new_from_string(<<"MATRIX");
[ 0 0 0 4 ]
[ 0 2 0 0 ]
[ 0 0 3 0 ]
[ 1 0 0 0 ]
MATRIX
$matrix14_col = Math::MatrixReal->new_from_string(<<"MATRIX");
[ 0 0 0 1 ]
[ 0 2 0 0 ]
[ 0 0 3 0 ]
[ 4 0 0 0 ]
MATRIX
$matrix->swap_row(1,4);
ok_matrix($matrix,$matrix14, 'swap_row works');
# back to orig
$matrix = Math::MatrixReal->new_from_string(<<"MATRIX");
[ 1 0 0 0 ]
[ 0 2 0 0 ]
[ 0 0 3 0 ]
[ 0 0 0 4 ]
MATRIX
$matrix->swap_col(1,4);
ok_matrix($matrix,$matrix14_col, 'swap col works');
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