Mathc initiation/a225
Apparence
Installer ce fichier dans votre répertoire de travail.
kg_c.h |
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/* --------------------------------- */
/* save as kg_c.h */
/* --------------------------------- */
void G_Curve_2d(
CTRL_splot p,
double (*P_f)(double t),
double (*P_g)(double t),
tvalue t
)
{
FILE *fp = fopen("a_main.plt","w");
fprintf(fp," reset\n"
" set size ratio -1\n"
" set zeroaxis lt 8\n"
" set grid\n\n"
" plot [%0.3f:%0.3f] [%0.3f:%0.3f]\\\n"
" \"ab\" with lines lt 7 lw 3 dt 3,\\\n"
" \"length\" with lines lt 7 lw 3\n" ,
p.xmin,p.xmax,p.ymin,p.ymax);
fclose(fp);
fp = fopen("length","w");
for(t.value=t.min; t.value<t.max; t.value+=t.step)
fprintf(fp," %6.3f %6.3f\n", (*P_f)(t.value),(*P_g)(t.value));
fprintf(fp," %6.3f %6.3f\n", (*P_f)(t.max), (*P_g)(t.max));
fclose(fp);
fp = fopen("ab","w");
fprintf(fp," %6.3f 0. \n", (*P_f)(t.min));
fprintf(fp," %6.3f %6.3f \n\n",(*P_f)(t.min),(*P_g)(t.min));
fprintf(fp," %6.3f 0. \n", (*P_f)(t.max));
fprintf(fp," %6.3f %6.3f \n\n",(*P_f)(t.max),(*P_g)(t.max));
fclose(fp);
}
/* --------------------------------- */
/* --------------------------------- */