# ChapterArithmetic/compute_pi.py """ Mathematical equation to compute pi. pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... prompts the user for the number of terms """ def main(): print("Computation of PI.") n = int(input( "How many terms for PI? " )) sum = 0 for i in range( n ): sum = sum + ((-1)**i) / (2*i+1) print("PI = ", 4 * sum) main()