Pmncos_Recurrence_Save Struct Reference

Hold data and workspace to do the three-term recurrence for a vector of sample points. More...

#include <libftsh.h>

Data Fields
int	numpts
REAL **	sofar
int *	size
REAL *	ex
REAL *	why

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Detailed Description

Hold data and workspace to do the three-term recurrence for a vector of sample points.

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Field Documentation

REAL* ex

An array of size (numpts+1)/2, holding cos(theta_i) where theta_i are your sampling points.

int numpts

The number of sample points. For spherical harmonic usage this is number of latitudes. We assume the samples are symmetric about PI/2 (we are on [0,PI]). We only compute values at (numpts+1)/2 values, since the others are obtained by reflection.

int* size

An array of size (numpts+1)/2 containing an extracted power of 2. To get true values from sofar, multiply by 2^size for the corresponding point.

REAL** sofar

An array of size 2x(numpts+1)/2 (ie sofar[2][(numpts+1)/2]). This will contain samples of the previous two Pmn's (at n-1 and n-2) with their overall size stored separately in size.

REAL* why

An array of size (numpts+1)/2, holding sin(theta_i) where theta_i are your sampling points.

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The documentation for this struct was generated from the following file:

• libftsh.h