Happyman <bahtiyor_zohidov <at> 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/specfun/specfun.f#L1091It does not have asymptotic expansions for dealing with parts of
the complex plane where the computation via the recurrence does not
work.
--
Pauli Virtanen
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