[Numpy-discussion] float96 on windows32 is float64?

Ilan Schnell ischnell@enthought....
Fri Mar 16 00:26:53 CDT 2012


To be more precise.  On both 32-bit and 64-bit Windows
machines I don't see.float96 as well as np.float128

- Ilan


On Fri, Mar 16, 2012 at 12:22 AM, Matthew Brett <matthew.brett@gmail.com> wrote:
> Hi,
>
> On Thu, Mar 15, 2012 at 10:17 PM, Ilan Schnell <ischnell@enthought.com> wrote:
>> I'm seeing the same thing on both (64 and 32-bit) Windows
>> EPD test machines.  I guess Windows does not support 128
>> bit floats.
>
> Do you mean there is no float96 on windows 32 bit as I described at
> the beginning of the thread?
>
>> I did some tests a few weeks ago, and discovered that also
>> on the Mac and Linux long long double is not really 128 bits.
>> If I remember correctly it was 80 bits: 1 (sign) + 16 (exp) + 63 (mantissa)
>
> Yes, that's right, on Intel for linux and OSX longdouble is 80 bit precision.
>
> Thanks,
>
> Matthew
> _______________________________________________
> NumPy-Discussion mailing list
> NumPy-Discussion@scipy.org
> http://mail.scipy.org/mailman/listinfo/numpy-discussion


More information about the NumPy-Discussion mailing list