並前往http://blog.whsh.tc.edu.tw/math/wp-content/uploads/sites/5/2013/08/%E7%86%A0%E7%86%A0%E7%94%9F%E8%BC%9D%E3%81%AE%E6%91%BA%E7%B4%99%E6%95%B8%E5%AD%B8_%E5%AD%B8%E7%BF%92%E5%96%AEby%E4%B8%80%E7%8F%8A.pdf