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2025-02-Numerical/lib/nr/cpp/recipes/rebin.cpp
2025-09-12 18:55:25 +09:00

20 lines
370 B
C++

#include "nr.h"
void NR::rebin(const DP rc, const int nd, Vec_I_DP &r, Vec_O_DP &xin,
Mat_IO_DP &xi, const int j)
{
int i,k=0;
DP dr=0.0,xn=0.0,xo=0.0;
for (i=0;i<nd-1;i++) {
while (rc > dr)
dr += r[(++k)-1];
if (k > 1) xo=xi[j][k-2];
xn=xi[j][k-1];
dr -= rc;
xin[i]=xn-(xn-xo)*dr/r[k-1];
}
for (i=0;i<nd-1;i++) xi[j][i]=xin[i];
xi[j][nd-1]=1.0;
}