1 #include <stdio.h>
2 
3 /* print Fahrenheit-Celsius table
4 	for fahr = 0, 20, ..., 300; floating-point version */
5 
6 main()
7 {
8 	float fahr, celsius;
9 	int lower, upper, step;
10 
11 	lower = 0;		/* lower limit of temperature table */
12 	upper = 300;	/* upper limit */
13 	step = 20;		/* step size */
14 
15 	fahr = lower;
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 }