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2025-02-Numerical/lib/nr/cpp/recipes/f1dim.cpp
2025-09-12 18:55:25 +09:00

17 lines
265 B
C++

#include "nr.h"
extern int ncom;
extern DP (*nrfunc)(Vec_I_DP &);
extern Vec_DP *pcom_p,*xicom_p;
DP NR::f1dim(const DP x)
{
int j;
Vec_DP xt(ncom);
Vec_DP &pcom=*pcom_p,&xicom=*xicom_p;
for (j=0;j<ncom;j++)
xt[j]=pcom[j]+x*xicom[j];
return nrfunc(xt);
}