?? xfleg.c
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/* Driver for routine fleg */#include <stdio.h>#define NRANSI#include "nr.h"#include "nrutil.h"#define NVAL 5#define DX 0.2#define NPOLY 5int main(void){ int i,j; float x,*afunc; afunc=vector(1,NPOLY); printf("\n%3s\n","Legendre polynomials"); printf("%9s %9s %9s %9s %9s\n","n=1","n=2","n=3","n=4","n=5"); for (i=1;i<=NVAL;i++) { x=i*DX; fleg(x,afunc,NPOLY); printf("x =%5.2f\n",x); for (j=1;j<=NPOLY;j++) printf("%10.4f",afunc[j]); printf(" routine FLEG\n"); for (j=1;j<=NPOLY;j++) printf("%10.4f",plgndr(j-1,0,x)); printf(" routine PLGNDR\n\n"); } free_vector(afunc,1,NPOLY); return 0;}#undef NRANSI?? 快捷鍵說明
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