#define NRANSI#include "nrutil.h"void svbksb(float **u, float w[], float **v, int m, int n, float b[], float x[]){	int jj,j,i;	float s,*tmp;	tmp=vector(1,n);	for (j=1;j<=n;j++) {		s=0.0;		if (w[j]) {			for (i=1;i<=m;i++) s += u[i][j]*b[i];			s /= w[j];		}		tmp[j]=s;	}	for (j=1;j<=n;j++) {		s=0.0;		for (jj=1;jj<=n;jj++) s += v[j][jj]*tmp[jj];		x[j]=s;	}	free_vector(tmp,1,n);}#undef NRANSI