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


int main( )
{
  FILE *fptr;
  int i;
    float x;

  fptr = fopen("FileIO_4.out","w");

  if(fptr != NULL){
    for(i=0; i<5; i++)
      fprintf(fptr,"%g\n", exp((float)i));

    fclose(fptr);
  }
  else
    printf("Unable to open file.\n");

  fptr = fopen("FileIO_4.out","r");

  if(fptr != NULL){
    for(i=0; i<5; i++){
      fscanf(fptr,"%f", &x);
      printf("Read: %g\n", x);
    }

    fclose(fptr);
  }
  else
    printf("Unable to open file.\n");

  return 0;
}