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Display Equation with MathJaX

之前一直用一个 LaTeX 的 WordPress 插件来显示公式,插件的工作原理很简单,把公式用 LaTeX 编译为 dvi ,然后用 dvi2png 之类的工具转换为图片,最后根据公式的文本内容算出一个 Hash 值,作为图片的文件名,缓存起来,下次遇到需要显示同样的公式的时候,如果文件已经存在的话,就不重新生成一遍了。

Backup & Restore WordPress Blog

Google recently released a tool for converting between different blogs. I haven’t tried that tool yet, but I guess you’d have two blogs simultaneously online for converting. So the traditional way of backing up the blog data is still necessary to prevent accidentally lost of data or planned blog migration.

WordPress provided a convenient way to […]