exc/k&r/01-a-tutorial-introduction/01-03.c

#include <stdio.h>

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

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

    printf("Fahr\tCels\n");

    fahr = lower;
    while (fahr <= upper) {
        celsius = (5.0 / 9.0) * (fahr - 32.0);
        printf("%4.0f\t%3.1f\n", fahr, celsius);
        fahr = fahr + step;
    }
}