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fastsum.h File Reference

Header file for the fast NFFT-based summation algorithm. More...

#include <complex.h>
#include "util.h"
#include "nfft3.h"

Go to the source code of this file.

Defines

#define EXACT_NEARFIELD   (1U<< 0)
 Constant symbols.

Typedefs

typedef fastsum_plan_ fastsum_plan
 plan for fast summation algorithm

Functions

double regkern (complex(*kernel)(), double xx, int p, const double *param, double a, double b)
double kubintkern (double x, double *Add, int Ad, double a)
 cubic spline interpolation in near field with even kernels


Detailed Description

Header file for the fast NFFT-based summation algorithm.

reference: M. Fenn, G. Steidl, Fast NFFT based summation of radial functions. Sampl. Theory Signal Image Process., 3, 1-28, 2004.

Author:
Markus Fenn
Date:
2003-2006

Definition in file fastsum.h.


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