?? xdf1dim.c
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/* Driver for routine df1dim */#include <stdio.h>#define NRANSI#include "nr.h"#include "nrutil.h"#define NDIM 3int ncom; /* defining declarations */float *pcom,*xicom;void (*nrdfun)(float [], float []);void dfunc(float x[], float df[]){ int i; for (i=1;i<=3;i++) df[i]=(x[i]-1.0)*(x[i]-1.0);}int main(void){ ncom=NDIM; pcom=vector(1,ncom); xicom=vector(1,ncom); nrdfun=dfunc; printf("\nEnter vector direction along which to\n"); printf("plot the function. Minimum is in the\n"); printf("direction 1.0 1.0 1.0 - enter x y z:\n\n"); pcom[1]=pcom[2]=pcom[3]=0.0; scanf("%f %f %f",&xicom[1],&xicom[2],&xicom[3]); scrsho(df1dim); free_vector(xicom,1,ncom); free_vector(pcom,1,ncom); return 0;}#undef NRANSI
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