SciPy

scipy.special.riccati_yn

scipy.special.riccati_yn(n, x)[source]

Compute Ricatti-Bessel function of the second kind and derivative.

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

Parameters:

n : int

Maximum order of function to compute

x : float

Argument at which to evaluate

Returns:

yn : ndarray

Value of y0(x), ..., yn(x)

ynp : ndarray

First derivative y0’(x), ..., yn’(x)

References

[R342]Zhang, Shanjie and Jin, Jianming. “Computation of Special Functions”, John Wiley and Sons, 1996. http://jin.ece.illinois.edu/specfunc.html