SphericalBessel Namespace Reference

Wrappers for returning Spherical Bessel functions. More...

Classes
class	JL_table
	Spherical Bessel Lookup table; in the form j_L(qr) = J[L][q][r]. More...

Functions
template<typename T >
T	JL (const int L, const T x)
	Spherical Bessel function. For x<0.1 and K<=7, uses expansion accurate to delta~1e-15, eps~1e-3.
template<typename T >
T	exactGSL_JL (int L, T x)
template<typename T >
std::vector< T >	fillBesselVec (const int l, const std::vector< T > &xvec)
	Creates a vector of Jl(r) for given r.
template<typename T >
std::vector< T >	fillBesselVec_kr (const int l, const double k, const std::vector< T > &rvec)
template<typename T >
void	fillBesselVec_kr (int l, double k, const std::vector< T > &r, std::vector< T > *jl)

Detailed Description

Wrappers for returning Spherical Bessel functions.

Has an "exact" version, and a faster approx version (good to ~ 1.e-9)

Function Documentation

JL()

template<typename T >

T SphericalBessel::JL	(	const int	L,
		const T	x
	)

Spherical Bessel function. For x<0.1 and K<=7, uses expansion accurate to delta~1e-15, eps~1e-3.

fillBesselVec()

template<typename T >

std::vector< T > SphericalBessel::fillBesselVec	(	const int	l,
		const std::vector< T > &	xvec
	)

Creates a vector of Jl(r) for given r.