[Numpy-discussion] Community Poll: numarray default underflow handling == "ignore" ?
Fernando Perez
fperez at colorado.edu
Fri Nov 21 08:57:12 EST 2003
Chris Barker wrote:
> Todd Miller wrote:
>
>>>>Someone recently suggested that we change the default for numarray
>>>>underflow checking to "ignore". Please vote (+1, 0, -1):
>
>
>>The default of underflow is "warn"
>
>
> assuming that ignore means that zero will be used, I vote +1
>
> If the difference between zero and the smallest floating point number is
> significant in your app, you'd better know what you're doing with
> floating point, and you should then know to set the check to "warn" or
> "raise".
+1 also from me (also as Chris, assuming 'ignore' means replacing with zeros
and not with NaNs). Underflow is about the only case of errors where I think
that silent ignore is a reasonable (if 'unpythonic') policy.
Cheers,
f
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