Thanks, haukex, POSIX::cbrt is just what I need! But I’m disappointed to find that POSIX::pow has the same limitations as **. So the more general question remains open.

Thanks again,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re^2: How to get better exponentiation? by Athanasius
in thread How to get better exponentiation? by Athanasius

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