I am trying to find a function in C that accepts one input number and returns a double number. Calculates 3.14 times of the square of input number. For example, if 2 is input then 12.56 should be returned. (e.g. 3.14*2*2 = 12.56)
I am trying to find a function in C that accepts one input number
and returns a double number. Calculates 3.14 times of the square of input number. For example, if 2 is input then 12.56 should be returned. (e.g. 3.14*2*2 = 12.56)