Calculate Area of a Circle without using math.h library: C

http://technotip.com/6227/calculate-area-of-a-circle-without-using-math-h-library-c/

We can calculate area of circle if we know the value of its radius. So using that, we shall write the logic in c program to calculate the area of a circle, without using math.h library functions.

C Programming: Beginner To Advance To Expert http://technotip.com/6086/c-programming-beginner-to-advance-to-expert/ ... https://www.youtube.com/watch?v=9-_G0N4HnLc