fahrc.c

   1 #include <stdio.h>
   2    /* exercise 1-3 */
   3    /* print Fahrenheit-Celsius table
   4        for fahr = 0, 20, ..., 300; floating-point version */
   5   main()
   6   {
   7     float fahr, celsius;
   8     float lower, upper, step;
   9
  10     lower = 0;      /* lower limit of temperatuire scale */
  11     upper = 300;    /* upper limit */
  12     step = 20;      /* step size */
  13
  14     fahr = lower;
  15         printf("Fahr\tC\n");
  16     while (fahr <= upper) {
  17         celsius = (5.0/9.0) * (fahr-32.0);
  18         printf("%3.0f %6.1f\n", fahr, celsius);
  19         fahr = fahr + step;
  20     }
  21   }