It seems to me that your error is happening up at the top of your script in the square root on @c. 
for(0..@c-1) {
#   $lambda[$_] = abs($c[$_]-($rho*sqrt($c[$_])));
    $lambda[$_] = abs($c[$_]-($rho * Math::BigFloat->new($c[$_])->bsqr
+t()));
}

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In reply to Re: BigFloat Precision by gam3
in thread BigFloat Precision by Willman023

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