水平投射です。 require 'bundler/setup' require 'cairo' require './gifanime' include Math W = 600; H = 300 V0 = 10.0; A = 0.75; G = 5.0 v = lambda {|n| - A ** n * sqrt(2 * G * H)} t = lambda do |n| if n.zero? sqrt(2 * H / G) else ar = [1] n…