Mathc initiation/0002
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kg_f.h |
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/* --------------------------------- */
/* save as kg_f.h */
/* --------------------------------- */
void G_f_2d(
CTRL_splot w,
double step,
double (*P_f)(double x)
)
{
FILE *fp = fopen("a_main.plt","w");
double i = w.xmin;
fprintf(fp," reset\n"
" set zeroaxis lt 8\n"
" set grid\n\n"
" set size ratio -1\n"
" plot [%0.3f:%0.3f] [%0.3f:%0.3f]\\\n"
" \"fi\" with line lt 7 lw 3\n\n",
w.xmin,w.xmax,w.ymin,w.ymax);
fclose(fp);
fp = fopen("fi", "w");
do{
fprintf(fp," %0.6f %0.6f\n", i,(*P_f)(i));
i += step;
}while(i <= w.xmax+step);
fclose(fp);
}
/* --------------------------------- */
/* --------------------------------- */