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2025-09-12 18:55:25 +09:00

27 lines
416 B
C

#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