/* irrational.c  e^(Pi*sqrt(163)) is an integer?  */
/*        to prove, converge from above and below */
/*        check that convergence is uniform       */
#include <math.h>
#include <stdio.h>

#define e  2.7182818284590452353602874713526624977572
#define Pi 3.1415926535897932384626433832795028841971

int main(int argc, char * argv[])
{

  printf("e^(Pi*sqrt(163)) is an integer? \n");
  printf("  262537412640768744.0000000  check \n");
  printf("%28.7f  using 15 digit arithmetic \n",pow(e,Pi*sqrt(163.0)));

  return 0;
}