Why not do: 
($a, $b, $c) = svd($matrix);
# convert to a perl list
my @bvals = list $b;

[download]
There's no need to parse out the values from a string. (By the way, your example has four values, not three).

In reply to Re: Extracting info from matrix by tall_man
in thread Extracting info from matrix by Angharad

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