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/*
Evaluates all associated legendre functions
at the angles theta up to the order nmax
using the three-term recurrence of the Legendre functions.
P has dimensions length(theta) x (nmax+1)(nmax+2)
Implementation by Franz Zotter, Institute of Electronic Music and Acoustics
(IEM), University of Music and Dramatic Arts (KUG), Graz, Austria
http://iem.at/Members/zotter, 2008.
This code is published under the Gnu General Public License, see
"LICENSE.txt"
*/
#ifndef _legendre_a_h__
#define _legendre_a_h__
#include <math.h>
#include <stdlib.h>
typedef struct _LegendreWorkSpace_
{
size_t nmax;
size_t l;
double *p;
} LegendreWorkSpace;
LegendreWorkSpace *legendre_a_alloc(const size_t nmax, const size_t l);
void legendre_a_free(LegendreWorkSpace *wl);
void legendre_a(double *theta, LegendreWorkSpace *wl);
#endif
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