Mathc initiation/c34a1

Sommaire

Installer ce fichier dans votre répertoire de travail.

	kg_f_ab.h

/* --------------------------------- */
/* save as kg_f_ab.h                 */
/* --------------------------------- */
void G_f_ab(
CTRL_splot w,
double ax,
double bx,
  char veq[],
double (*P_v)(double x)
)
{
FILE   *fp = fopen("a_main.plt","w");

 fprintf(fp," set zeroaxis lt 8\n" 
            " set grid\n\n" 
            " plot [%0.3f:%0.3f] [%0.3f:%0.3f]\\\n"
            " %s     with line lt 7 lw 2,\\\n"
            " \"ab\" with line lt 7 lw 2   \n"
            " reset\n\n",
             w.xmin,w.xmax,w.ymin,w.ymax,
             veq);
  fclose(fp);
  
 fp = fopen("ab",  "w");
 fprintf(fp," %0.6f   %0.6f  \n", ax, ((*P_v)(ax)));
 fprintf(fp," %0.6f   %0.6f\n\n", ax,          0.0);
 fprintf(fp," %0.6f   %0.6f  \n", bx, ((*P_v)(bx)));
 fprintf(fp," %0.6f   %0.6f  \n", bx,          0.0);
  fclose(fp);
          
  printf(" ... load \"a_main.plt\" ... with gnuplot.\n\n");             
}
/* --------------------------------- */
/* --------------------------------- */

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