Leibniz
public ruby v1 · immutable#!/usr/bin/env rubyn = 0.0s = 0.0while n<=ARGV[0].to_i do # print s.to_s + "\r" s += (-1)**n/(2*n+1) n += 1endputs s*4#!/usr/bin/env rubyn = 0.0s = 0.0while n<=ARGV[0].to_i do # print s.to_s + "\r" s += (-1)**n/(2*n+1) n += 1endputs s*4