Files
2025-02-Numerical/lib/nr/ansi/examples/xbico.c
2025-09-12 18:55:25 +09:00

38 lines
771 B
C

/* Driver for routine bico */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NRANSI
#include "nr.h"
#include "nrutil.h"
#define MAXSTR 80
int main(void)
{
char txt[MAXSTR];
int i,k,n,nval;
float binco;
FILE *fp;
if ((fp = fopen("fncval.dat","r")) == NULL)
nrerror("Data file fncval.dat not found\n");
fgets(txt,MAXSTR,fp);
while (strncmp(txt,"Binomial Coefficients",21)) {
fgets(txt,MAXSTR,fp);
if (feof(fp)) nrerror("Data not found in fncval.dat\n");
}
fscanf(fp,"%d %*s",&nval);
printf("\n%s\n",txt);
printf("%6s %6s %12s %12s \n","n","k","actual","bico(n,k)");
for (i=1;i<=nval;i++) {
fscanf(fp,"%d %d %f ",&n,&k,&binco);
printf("%6d %6d %12.0f %12.0f \n",n,k,binco,bico(n,k));
}
fclose(fp);
return 0;
}
#undef NRANSI