No need to copy rows. Here's a much smaller function: 
sub pascal {
    my @row;
    foreach (1 .. shift) {
        push @row => 1;
        $row [$_] += $row [$_ - 1] for reverse 1 .. @row - 2;
        print "@row\n";
    }
}

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Abigail

In reply to Re: Pascal triange... by Abigail-II
in thread Pascal's triangle... by kiat

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