?? qrsolv.cpp
字號(hào):
#include "nr.h"
void NR::qrsolv(Mat_I_DP &a, Vec_I_DP &c, Vec_I_DP &d, Vec_IO_DP &b)
{
int i,j;
DP sum,tau;
int n=a.nrows();
for (j=0;j<n-1;j++) {
for (sum=0.0,i=j;i<n;i++) sum += a[i][j]*b[i];
tau=sum/c[j];
for (i=j;i<n;i++) b[i] -= tau*a[i][j];
}
rsolv(a,d,b);
}
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