On Wed, Dec 10, 2008 at 11:58 AM, Robert Kern <[EMAIL PROTECTED]> wrote:
> On Wed, Dec 10, 2008 at 12:07, Charles R Harris > <[EMAIL PROTECTED]> wrote: > > > > > > On Wed, Dec 10, 2008 at 11:00 AM, frank wang <[EMAIL PROTECTED]> wrote: > >> > >> On my two systems with Intel Core2 DUO, finfo(float128) gives me the > >> nameerro, "NameError: name 'float128' is not defined". Why? > >> > > > > You probably run a 32 bit OS. IEEE extended precision is 80 bits. On 32 > bit > > systems it fits in three 32 bit words and shows up as float96. On 64 bit > > systems it fits in two 64 bit words and shows up as float128. > > I'm running a 32-bit OS (well, a 32-bit build of Python on OS X) on an > Intel Core2 Duo, and I get a float128. > Curious. It probably has something to do with the way the FPU is set up when running on a 64 bit system that is independent of how python is compiled. Chuck
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