定則(Rule)是一種特定用於解決或計算問題的數學方法。[1]有時也稱作法則。定則與定律(Law)有時都會被稱為法則。

舉例

參考

  1. ^ Rule | Define Rule at Dictionary.com页面存档备份,存于互联网档案馆)6.a prescribed mathematical method for performing a calculation or solving a problem.