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fastsum_plan_ Struct Reference

plan for fast summation algorithm More...

#include <fastsum.h>


Data Fields

int d
 api number of dimensions
int N_total
 number of source knots
int M_total
 number of target knots
complex * alpha
 source coefficients
complex * f
 target evaluations
double * x
 source knots in d-ball with radius 1/4-eps_b/2
double * y
 target knots in d-ball with radius 1/4-eps_b/2
complex(* kernel )(double, int, const double *)
 kernel function
double * kernel_param
 parameters for kernel function
unsigned flags
 flags precomp.
complex * pre_K
 DS_PRE - direct summation precomputed K(x_j-y_l).
int n
 FS__ - fast summation expansion degree.
fftw_complex * b
 expansion coefficients
int p
 degree of smoothness of regularization
double eps_I
 inner boundary
double eps_B
 outer boundary
nfft_plan mv1
 source nfft plan
nfft_plan mv2
 target nfft plan
int Ad
 near field number of spline knots for nearfield computation of regularized kernel
double * Add
 spline values
fftw_plan fft_plan


Detailed Description

plan for fast summation algorithm


Field Documentation

unsigned fastsum_plan_::flags
 

flags precomp.

and approx.type


The documentation for this struct was generated from the following file:
Generated on Wed May 10 20:39:39 2006 for NFFT by  doxygen 1.4.4