C Tutorials for Beginners

This is a C program to convert Fahrenheit to Celcius. Let us take a look at the program . This can be easily accomplished with a for loop or a while loop: #include int main() { int a; a = 0; while (a <= 100) { printf("%4d degrees F = %4d degrees C\n", a, (a - 32) * 5 / 9); a = a + 10; } return 0; } If you run this program, it will produce a table of values starting at 0 degrees F and ending at 100 degrees F. The output will look like this: 0 degrees F = -17 degrees C 10 degrees F = -12 degrees C 20 degrees F = -6 degrees C 30 degrees F = -1 degrees C 40 degrees F = 4 degrees C 50 degrees F = 10 degrees C 60 degrees F = 15 degrees C 70 degrees F = 21 degrees C 80 degrees F = 26 degrees C 90 degrees F = 32 degrees C 100 degrees F = 37 degrees C The table's values are in increments of 10 degrees. You can see that you can easily change the starting, ending or increment values of the table