fahrenheit-celsius.c

#include <stdio.h>

/* print Fahrenheit-Celsius table
  for fahr = 0, 20, ..., 300 */
int main()
{
  float fahr, celsius;
  int lower, upper, step;

  lower = 0;
  upper = 300;
  step = 20;

  printf("%2c%7c\n", 'F', 'C');
  printf("%3s%7s\n", "---", "---");

  fahr = lower;
  while(fahr <= upper) {
    celsius = (5.0/9.0) * (fahr-32.0);
    printf("%3.0f %6.1f\n", fahr, celsius);
    fahr += step;
  }
}