※ 引述《[email protected] (这一秒)》之铭言： > 我现在手边有一段分断定义函数 > 之前在没有要开始编号方程式之前都相安无事 > \[ x = \left\{\begin{array}{ll} > y & \mbox{if } y > 0, \\ > z+y & \mbox{otherwise.} > \end{array} \right. \] > 但是当现在要整理，要加上编号时 > 我是想要用\begin{equation} > \end{equation} 包起来 > 不论我这样包 > \begin{equation} \[ x = \left\{\begin{array}{ll} > y & \mbox{if } y > 0, \\ > z+y & \mbox{otherwise.} > \end{array} \right. \] \end{equation} > 或是这样包 > \[ \begin{equation} x = \left\{\begin{array}{ll} > y & \mbox{if } y > 0, \\ > z+y & \mbox{otherwise.} > \end{array} \right. \end{equation} \] > 执行时都会出现Bad math environment delimiter的错误讯息 > 请问这是否有解决的方法呢? 有, 因为你不该 \begin{equation} + \[ There are three environments that put LaTeX in math mode: math: For Formulae that appear right in the text. displaymath : For Formulae that appear on their own line. equation: The same as the displaymath environment except that it adds an equation number in the right margin. 请自己查一下这些环境的用法罗 :) 你的问题就是你重覆使用环境 套用这个作法你就能通过编译 \begin{equation} x = ???? \end{equation} -- ※ Origin: 土匪．山寨 <bbs.techarea.org / poorman.twbbs.org> ◆ From: 140.116.80.33