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2025-02-Numerical/lib/nr/ansi/recipes/cholsl.c
2025-09-12 18:55:25 +09:00

16 lines
281 B
C

void cholsl(float **a, int n, float p[], float b[], float x[])
{
int i,k;
float sum;
for (i=1;i<=n;i++) {
for (sum=b[i],k=i-1;k>=1;k--) sum -= a[i][k]*x[k];
x[i]=sum/p[i];
}
for (i=n;i>=1;i--) {
for (sum=x[i],k=i+1;k<=n;k++) sum -= a[k][i]*x[k];
x[i]=sum/p[i];
}
}