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 知乎专栏 ｜ 多维度架构

## 第 14 章 equation 公式

```
<equation>
<title>Fermat's Last Theorem</title>
<alt>x^n + y^n ≠ z^n ∀ n ≠ 2</alt>
<mathphrase>
x<superscript>n</superscript>+y<superscript>n</superscript>≠z<superscript>n</superscript>
∀ n ≠ 2
</mathphrase>
</equation>

<informalequation>
<alt>e^(pi*i) + 1 = 0</alt>
<mediaobject>
<imageobject condition="print"><imagedata fileref="figs/print/db5d_refeqn02.pdf"/></imageobject>
<imageobject condition="web"><imagedata fileref="figs/web/db5d_refeqn02.png"/></imageobject>
</mediaobject>
</informalequation>

```

x n +y n ≠z n ∀ n ≠ 2

## 14.1. 引用latex公式

```
<para>
A presentation system using TeX as a back end might allow you to insert inline markup, such as <markup role="tex">\$x^2\$</markup>, using TeX syntax directly.
</para>

```

A presentation system using TeX as a back end might allow you to insert inline markup, such as \$x^2\$ , using TeX syntax directly.