von_mises_cdf_series()

template<typename T_x , typename T_k >

return_type_t< T_x, T_k > stan::math::internal::von_mises_cdf_series	(	const T_x &	x,
		const T_k &	k
	)

This implementation of the von Mises cdf is a copy of scipy's.

see: https://github.com/scipy/scipy/blob/8dba340293fe20e62e173bdf2c10ae208286692f/scipy/stats/vonmises.py

When k < 50, approximate the von Mises cdf with the following expansion that comes from scipy.

Definition at line 23 of file von_mises_cdf.hpp.