#include <stdio.h>
#include <math.h>

int main ()
{
   printf("%f\n%f\n%f\n", 
      1.0/0.0,
      pow (1.0, 1.0/0.0),
      fmod(5.5, 1.0/0.0)
   );

   return(0);
}

inf
1.000000
5.500000