From Math::MatrixReal:
$matrix->swap_col( $col1, $col2 ); This method takes two one-based column numbers and swaps the values of each element in each column. $matrix->swap_col(2,3) would replace column 2 in $matrix with column 3, and replace column 3 with column 2.
So presumably you would get your desired result with (untested):
use Text::CSV; use Math::MatrixReal; my $mref = [ [ 'a', 'b', 'c', 'd', 'e' ], ]; my $matrix = Math::MatrixReal->new_from_rows( $mref ); print $matrix; # this will print [ 'a', 'b', 'c', 'd', 'e' ] # I want to reverse the order inside the matrix which I need later on +to do some more operations. Appreciate the help. $matrix->swap_col(1,5); $matrix->swap_col(2,4); #Result: I want the result to be printed like below # print $matrix = [ 'e', 'd', 'c', 'b', 'a' ]
There's also a swap_row method, depending on what you mean by 'reverese the order of matrix output'.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.


In reply to Re: Reverse the order of matrix printing using Math::MatrixReal by kennethk
in thread Reverse the order of matrix printing using Math::MatrixReal by John007

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