蔡銘智期末考Math.PI與Math.E放入計算機
蔡銘智學習Bro code製作計算機 + 7 8 9 - 4 5 6 * 1 2 3 ÷ 0 . = 刪 π e ** https://www.youtube.com/watch?v=I5kj-YsmWjM Build this JS calculator in 15 minutes!