#include <stdio.h>#include <math.h>#define NRANSI#include "nrutil.h"#define NE 3#define M 41#define NB 1#define NSI NE#define NYJ NE#define NYK M#define NCI NE#define NCJ (NE-NB+1)#define NCK (M+1)#define NSJ (2*NE+1)int mm,n,mpt=M;float h,c2=0.0,anorm,x[M+1];int main(void)  /* Program sfroid */{	float plgndr(int l, int m, float x);	void solvde(int itmax, float conv, float slowc, float scalv[],		int indexv[], int ne, int nb, int m, float **y, float ***c, float **s);	int i,itmax,k,indexv[NE+1];	float conv,deriv,fac1,fac2,q1,slowc,scalv[NE+1];	float **y,**s,***c;	y=matrix(1,NYJ,1,NYK);	s=matrix(1,NSI,1,NSJ);	c=f3tensor(1,NCI,1,NCJ,1,NCK);	itmax=100;	conv=5.0e-6;	slowc=1.0;	h=1.0/(M-1);	printf("\nenter m n\n");	scanf("%d %d",&mm,&n);	if (n+mm & 1) {		indexv[1]=1;		indexv[2]=2;		indexv[3]=3;	} else {		indexv[1]=2;		indexv[2]=1;		indexv[3]=3;	}	anorm=1.0;	if (mm) {		q1=n;		for (i=1;i<=mm;i++) anorm = -0.5*anorm*(n+i)*(q1--/i);	}	for (k=1;k<=(M-1);k++) {		x[k]=(k-1)*h;		fac1=1.0-x[k]*x[k];		fac2=exp((-mm/2.0)*log(fac1));		y[1][k]=plgndr(n,mm,x[k])*fac2;		deriv = -((n-mm+1)*plgndr(n+1,mm,x[k])-			(n+1)*x[k]*plgndr(n,mm,x[k]))/fac1;		y[2][k]=mm*x[k]*y[1][k]/fac1+deriv*fac2;		y[3][k]=n*(n+1)-mm*(mm+1);	}	x[M]=1.0;	y[1][M]=anorm;	y[3][M]=n*(n+1)-mm*(mm+1);	y[2][M]=(y[3][M]-c2)*y[1][M]/(2.0*(mm+1.0));	scalv[1]=fabs(anorm);	scalv[2]=(y[2][M] > scalv[1] ? y[2][M] : scalv[1]);	scalv[3]=(y[3][M] > 1.0 ? y[3][M] : 1.0);	for (;;) {		printf("\nEnter c**2 or 999 to end.\n");		scanf("%f",&c2);		if (c2 == 999) {			free_f3tensor(c,1,NCI,1,NCJ,1,NCK);			free_matrix(s,1,NSI,1,NSJ);			free_matrix(y,1,NYJ,1,NYK);			return 0;		}		solvde(itmax,conv,slowc,scalv,indexv,NE,NB,M,y,c,s);		printf("\n %s %2d %s %2d %s %7.3f %s %10.6f\n",			"m =",mm,"  n =",n,"  c**2 =",c2,			" lamda =",y[3][1]+mm*(mm+1));	}}#undef NRANSI