A slightly different approach for a strictly lower triangular matrix: 

use PDL::LinearAlgebra::Real
...
tricpy(zeros($size,$size), 0, my $sltm = ones($size, $size));

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Greetings,
-jo

$gryYup$d0ylprbpriprrYpkJl2xyl~rzg??P~5lp2hyl0p$

In reply to Re^3: first stumbling steps in PDL by jo37
in thread first stumbling steps in PDL by Discipulus

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