scitbx::math::bessel Namespace Reference

Family of Bessel functions. More...

Functions
template<typename FloatType>
FloatType	i1_over_i0 (FloatType const &x)
	Calculates the ratio I1(x)/I0(x).
template<typename FloatType>
scitbx::af::shared< FloatType >	i1_over_i0 (scitbx::af::const_ref< FloatType > const &x)
template<typename FloatType>
FloatType	inverse_i1_over_i0 (const FloatType &x)
	Calculates the inverse function of the ratio I1(x)/I0(x).
template<typename FloatType>
scitbx::af::shared< FloatType >	inverse_i1_over_i0 (scitbx::af::const_ref< FloatType > const &x)
template<typename FloatType>
FloatType	i0 (FloatType const &x)
	Calculates I0(x).
template<typename FloatType>
FloatType	i1 (FloatType const &x)
	Calculates I1(x).
template<typename FloatType>
FloatType	ln_of_i0 (FloatType const &x)
	Calculates ln( I0(x) ).
template<typename FloatType>
FloatType	ei1 (FloatType const &x)
template<typename FloatType>
FloatType	ei0 (FloatType const &x)

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Detailed Description

Family of Bessel functions.

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Function Documentation

FloatType scitbx::math::bessel::inverse_i1_over_i0

(

const FloatType &

x

)

[inline]

Calculates the inverse function of the ratio I1(x)/I0(x).

Implementation based on clipper::Util::invsim() by Kevin Cowtan. Warning: for x > 10 the results are not very accurate.

Referenced by hendrickson_lattman::hendrickson_lattman().