[Numpy-discussion] Importance of order when summing values in anarray

Robert Kern robert.kern@gmail....
Wed Dec 10 12:58:05 CST 2008


On Wed, Dec 10, 2008 at 12:07, Charles R Harris
<charlesr.harris@gmail.com> wrote:
>
>
> On Wed, Dec 10, 2008 at 11:00 AM, frank wang <f.yw@hotmail.com> 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.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
  -- Umberto Eco


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