The exponentiation operator a**b is IIRC optimized to generally handle float input for a and b and is approximating the result.

Does this arise because C's pow/powl/powq functions take floating point inputs and return floating point values ?
I've always assumed so, without ever really knowing.

I'm a little surprised that the C language doesn't provide a pow() function that takes and returns signed long int (or signed long long int) values - though I guess such a function would easily overflow for relatively low input values.

Cheers,
Rob

In reply to Re^3: Non-integer print output??? by syphilis
in thread Non-integer print output??? by jwkrahn

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