[SciPy-dev] [SciPy-user] calculating factorial
Travis Oliphant
oliphant at ee.byu.edu
Sun Nov 20 01:58:17 EST 2005
Pearu Peterson wrote:
>With the revision 1516 of scipy core arange seems to have ref.counting
>problem:
>
>
>
>>>>from scipy import *
>>>>prod(arange(2,101,dtype=object))
>>>>
>>>>
>Illegal instruction
>
>
>
>>>>from scipy import *
>>>>a=prod(arange(2,101,dtype=object))
>>>>a
>>>>
>>>>
>Illegal instruction
>
>
>
>>>>from scipy import *
>>>>a=arange(2,101,dtype=object)
>>>>b=prod(a)
>>>>b
>>>>
>>>>
>9.3326215443944102e+157
>
>
>
>Anyone can reproduce these segfaults?
>
>
Yes, I can.
We need continued testing of the object arrays. These can be tricky to
get right. Several object-array-based bugs are in Numeric, in fact,
which led to some not using them.
-Travis
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