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

Thanks But I could find for Win64 bit windows Second question: Did you mean that I have to put lens limits of those number???   Пятница, 21 декабря 2012, 15:45 UTC от Pauli Virtanen : >Hi, > >Your code tries to to evaluate > >z = 1263309.3633394379 + 101064.74910119522j >jv(536, z)

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

Hi, Your code tries to to evaluate z = 1263309.3633394379 + 101064.74910119522j jv(536, z) # -> (inf+inf*j) In reality, this number is not infinite, but jv(536, z) == -2.3955170861527422e+43888 + 9.6910119847300024e+43887 These numbers (~ 10^43888) are too large for the floatin

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

I think you advised about the code which is the same appearance. == Problem is not here Sir I will give you exactly what I was talking about. I have ready codes already(It would be kind of you if you checked the following

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

Received from Pauli Virtanen on Fri, Dec 21, 2012 at 08:59:02AM EST: > Dag Sverre Seljebotn astro.uio.no> writes: > [clip] > > Do you have an implemention of the Bessel functions that work as you > > wish in C or Fortran? If so, that could be wrapped and called from Python. > > For spherical Bes

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

Dag Sverre Seljebotn astro.uio.no> writes: [clip] > Do you have an implemention of the Bessel functions that work as you > wish in C or Fortran? If so, that could be wrapped and called from Python. For spherical Bessel functions it's possible to also use the relation to Bessel functions, which h

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

On 12/21/2012 02:30 PM, Happyman wrote: > I have everything in C or Fortran...According to my friends > recommendations I started learning Python for my research... > > Do you mean the functions which gave Nan result has not been developed > properly yet in Python, Don't you The way most of Nu

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

I have everything in C or Fortran...According to my friends recommendations I started learning Python for my research... Do you mean the functions which gave Nan result has not been developed properly yet in Python, Don't you For about 1.5 months I have been facing the same problem for Bes

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

Happyman mail.ru> writes: > 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?? That Fortran code is `sph_jn`, whic

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

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 : >Happyman

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

Happyman mail.ru> writes: [clip] > 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: https://github.com/scipy/scipy/blob/master/scipy/special/s

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

DEAR PYTHON USERS DO MATHEMATICAL FUNCTIONS HAVE LIMITATION IN PYTHON in comparison with other programming languages I have two mathematical functions: from scipy.special import sph_jn,  sph_jnyn 1)  sph_jn (n, z) ---> n is float, z is complex number for example:  a,b=sph_jn ( 2.0 , 5+0