scipy.special.sph_in

scipy.special.sph_in(n, z)

Compute spherical Bessel function in(z) and derivative.

This function computes the value and first derivative of in(z) for all orders up to and including n.

Parameters:

n : int

Maximum order of in to compute

z : complex

Argument at which to evaluate

Returns:

in : ndarray

Value of i0(z), ..., in(z)

inp : ndarray

First derivative i0’(z), ..., in’(z)

References

[R352]

Zhang, Shanjie and Jin, Jianming. “Computation of Special Functions”, John Wiley and Sons, 1996, chapter 8. http://jin.ece.illinois.edu/specfunc.html