並前往https://math.ymhs.tyc.edu.tw/chenjt99/ScrClass/1082/%E9%AB%98%E4%B8%89/%E9%AB%98%E4%B8%89%E9%81%B8%E4%BF%AE%E4%B9%99%E4%B8%8B/%E7%BF%92%E9%A1%8C/%E9%AB%98%E4%B8%89%E6%95%B8%E4%B9%99%E4%B8%8Bch1.3%E7%BF%92%E9%A1%8C(%E9%BE%8D%E9%A8%B0).pdf