针对目前网上处理数学公式多采用图片或需安装插件的弊端，提出了一种在线数学公式编辑器实现方案——E-Math。该方案面向主流的MSIE用户，以Content MathML作为描述语言，使用JavaScript和XSLT技术实现，表达了公式的数学含义，支持符号计算、数值计算等新型Web应用。此外，E-Math代码开源并且有良好的扩展性。本文介绍了E-Math的主要功能、框架结构和实现方案。

There are two ways to present mathematical expressions on web pages now, i.e. as an image or installing plug-ins on web browser. To make up the shortage of both methods, a web mathematical equation editor named E-Math is presented. E-Math is based on Content MathML and implemented in JavaScript and XSLT, and therefore supports further numerical and symbolic computation online. Furthermore, the source code of E-Math is openly available. This paper provides E-Math’s framework and a technical solution.