[Numpy-discussion] NaN (Not a Number) occurs in calculation of complex number for Bessel functions

Happyman bahtiyor_zohidov at mail.ru
Fri Dec 21 07:56:08 EST 2012

 Thanks Pauli

But I have already very shortly built  for bessel function, but the code you gave me is in Fortran.. I also used f2py but I could not manage to read fortran codes..that is why I have asked in Python what is wrong??

Пятница, 21 декабря 2012, 12:46 UTC от Pauli Virtanen <pav at iki.fi>:
>Happyman <bahtiyor_zohidov <at> mail.ru> writes:
>> IF I GIVE ( it is necessary value for my program ): 
>> a , b = sph_jn ( 536 , 2513.2741228718346 + 201.0619298974676j )
>The implementation of the spherical Bessel functions is through
>this Fortran code:
>It does not have asymptotic expansions for dealing with parts of
>the complex plane where the computation via the recurrence does not
>Pauli Virtanen
>NumPy-Discussion mailing list
>NumPy-Discussion at scipy.org

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