/* nag_gamma_dist (g01efc) Example Program.
 *
 * Copyright 1990 Numerical Algorithms Group.
 *
 * Mark 1, 1990.
 */

#include <nag.h>
#include <stdio.h>
#include <nag_stdlib.h>
#include <nagg01.h>

int main(void)
{
  Integer  exit_status = 0;
  double   a, b, g, p;
  NagError fail;

  INIT_FAIL(fail);

  /* Skip heading in data file */
  scanf("%*[^\n]");
  printf("nag_gamma_dist (g01efc) Example Program Results\n");
  printf(" Gamma deviate    Alpha     Beta    Lower tail prob.\n\n");
  while (scanf("%lf %lf %lf", &g, &a, &b) != EOF)
    {
      /* nag_gamma_dist (g01efc).
       * Probabilities for the gamma distribution
       */
      p = nag_gamma_dist(Nag_LowerTail, g, a, b, &fail);
      if (fail.code != NE_NOERROR)
        {
          printf("Error from nag_gamma_dist (g01efc).\n%s\n",
                  fail.message);
          exit_status = 1;
          goto END;
        }
      printf(" %9.2f%13.2f%9.2f%14.4f\n", g, a, b, p);
    }

 END:
  return exit_status;
}