有没有办法将chemarr的乳胶表达式用于bookdown包的`gitbook`格式? [英] Is there a way to use latex expression of chemarr for `gitbook` format of bookdown package?

问题描述

我想对bookdown包的 gitbook 格式使用chemarr的乳胶表达式.

I would like to use latex expression of chemarr for gitbook format of bookdown package.

\begin{equation}
  [C] + [R] 
  \xrightleftharpoons[k_{-1}]{k_1}
  [CR] + [C] 
  \xrightleftharpoons[k_{-2}]{k_2}
  [C2R]
(\#eq:multiplebinding)
\end{equation}

对于PDF格式，显示等式没有问题.

For PDF format, there is no problem of displaying the equation.

另一方面，对于gitbook格式，会出现错误消息.

On the other hand, for gitbook format there is an error message.

主要是因为我无法为 gitbook 格式定义以下yaml标头.

It's mainly because I cannot define the following yaml header for gitbook format.

header-includes:
  - \usepackage{chemarr}

有没有一种方法可以将chemarr的乳胶表达用于bookdown软件包的 gitbook 格式?如果不可能，是否可以使用 include_graphics 函数并添加方程式编号(在此示例中为19.16)?

Is there a way to use latex expression of chemarr for gitbook format of bookdown package? If it's impossible, is there a way to use include_graphics function and add equation numbering (say, 19.16 in this example)?

推荐答案

谢一慧(Yihui Xie)已为解决方案提供了很好的提示:

Yihui Xie already gave a good hint to the solution:

将此代码放入您的文档中(您希望方程出现的位置):

Put this code into your document (where you want the equation to appear):

$$
\require{mhchem}
\begin{equation}
  [C] + [R] 
  \xrightleftharpoons[k_{-1}]{k_1}
  [CR] + [C] 
  \xrightleftharpoons[k_{-2}]{k_2}
  [C2R]
(\#eq:multiplebinding)
\end{equation}
$$

需要使用 mhchem 的箭头而不是 chemarr 的箭头，因为只有第一个是MathJax的一部分.但我认为它应该基本上是相同的.

Needs to use the arrow of mhchem instead of chemarr since only the first is part of MathJax. But I think it should anyway be basically the same.

此方法应适用于MathJax支持的所有Latex命令(http://docs.mathjax.org/en/latest/input/tex/macros/index.html ).

This method should work for all Latex commands supported by MathJax (http://docs.mathjax.org/en/latest/input/tex/macros/index.html).

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