1-15.c

   1 #include <stdio.h>
   2    /* exercise 1-15: Fahrenheit-Celsius table but with a function */
   3    /* print Fahrenheit-Celsius table
   4        for fahr = 0, 20, ..., 300; floating-point version */
   5
   6 main()
   7 {
   8     float fahr, celsius;
   9     float lower, upper, step;
  10
  11     lower = 0;      /* lower limit of temperatuire scale */
  12     upper = 300;    /* upper limit */
  13     step = 20;      /* step size */
  14
  15     fahr = lower;
  16         printf("Fahr\tC\n");
  17     while (fahr <= upper) {
  18         celsius = (5.0/9.0) * (fahr-32.0);
  19         printf("%3.0f %6.1f\n", fahr, celsius);
  20         fahr = fahr + step;
  21     }
  22
  23 }