fnft__kdv_fscatter.h File Reference

Computes the polynomial approximation of the combined scattering matrix. More...

#include "fnft__kdv_discretization.h"
#include "fnft__akns_fscatter.h"

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Functions
FNFT_UINT	fnft__kdv_fscatter_numel (FNFT_UINT D, fnft_kdv_discretization_t discretization)
	Returns the length of transfer_matrix to be allocated based on the number of samples and discretization.
FNFT_INT	fnft__kdv_fscatter (const FNFT_UINT D, FNFT_COMPLEX const *const q, FNFT_COMPLEX const *const r, const FNFT_REAL eps_t, const FNFT_INT kappa, FNFT_COMPLEX *const result, FNFT_UINT *const deg_ptr, FNFT_INT *const W_ptr, fnft_kdv_discretization_t const discretization)
	Fast computation of polynomial approximation of the combined scattering matrix.

Detailed Description

Computes the polynomial approximation of the combined scattering matrix.

Function Documentation

fnft__kdv_fscatter_numel()

FNFT_UINT fnft__kdv_fscatter_numel	(	FNFT_UINT	D,
		fnft_kdv_discretization_t	discretization
	)

Returns the length of transfer_matrix to be allocated based on the number of samples and discretization.

This routine returns the length 4*D*(kdv_discretization_degree(discretization) + 1) to be allocated based on the number of samples and discretization of type discretization.

Parameters

[in]	D	Number of samples.
[in]	discretization	Type of discretization from fnft_kdv_discretization_t.

Returns

Returns the length to be allocated. Returns 0 for unknown discretizations.