並前往http://math1.ck.tp.edu.tw/%E6%9E%97%E4%BF%A1%E5%AE%89/%E5%AD%B8%E8%A1%93%E7%A0%94%E7%A9%B6/%E4%B8%8A%E8%AA%B2%E8%AC%9B%E7%BE%A9/99%E8%AA%B2%E7%B6%B1/%E6%95%B8%E7%94%B2%E4%B8%8B/2-1%E5%BE%AE%E5%88%86.pdf
