Fahrenheit-Celsius Table

Code

#include <u.h>
#include <libc.h>

/* print Fahrenheit-Celsius table
    for fahr = 0, 20, ..., 300 */

void
main()
{
    int fahr, celsius;
    int lower, upper, step;

    lower = 0;      /* lower limit of temperature table */
    upper = 300;        /* upper limit */
    step = 20;      /* step size */

    fahr = lower;
    while(fahr <= upper) {
        celsius = 5 * (fahr-32) / 9;
        print("%d\t%d\n", fahr, celsius);
        fahr = fahr + step;
    }
}

Output

$ 9c temp_int.c
$ 9l temp_int.o -o temp_int
$ ./temp_int
0   -17
20  -6
40  4
60  15
80  26
100 37
120 48
140 60
160 71
180 82
200 93
220 104
240 115
260 126
280 137
300 148