The CORE namespace take priority. This is important because otherwise you would end up in situations like you have with PDL's srand all the time. If you want to override the core function you can do it like this:

perl -wle "use subs 'sqrt'; print sqrt(2); print CORE::sqrt(2); sub sq
+rt { return sprintf('%.6g',$_[0] ** 0.5) } "
1.41421
1.4142135623731

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In reply to Re^2: PDL and srand puzzle by sectokia
in thread PDL and srand puzzle by syphilis

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