18

所以我想要像 MathJax 这样的 KaTeX 内联公式。
但到目前为止，我只发现render()了一个将字符串“绘制”到元素的函数。
我需要修改 DOM 中文本节点的一部分。
我真的找不到如何用 KaTeX 做到这一点。它有这样的功能吗？
MathJax 可以做到这一点。

4

3 回答 3

25

是的，您可以$使用 KaTeX 的自动渲染扩展来内联渲染所有 - 分隔的公式。根据该页面上的文档，$它不是默认分隔符之一，因此您需要在调用时设置它renderMathInElement()并设置display为false，这会呈现内联。下面是一个例子，另一个来自 KaTeX 的例子可以在这里找到。

注意，\\在 JavaScript 中对应\于 HTML。

<!doctype html>
<html>
<head>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.7.1/katex.min.css">
    <script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.7.1/katex.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.7.1/contrib/auto-render.min.js"></script>
</head>
<body>
    <div>The formula $a^2+b^2=c^2$ will be rendered inline, but $$a^2+b^2=c^2$$ will be rendered as a block element.</div>
    <br>
    <div>The formula \(a^2+b^2=c^2\) will be rendered inline, but \[a^2+b^2=c^2\] will be rendered as a block element.</div>
    <script>
      renderMathInElement(
          document.body,
          {
              delimiters: [
                  {left: "$$", right: "$$", display: true},
                  {left: "\\[", right: "\\]", display: true},
                  {left: "$", right: "$", display: false},
                  {left: "\\(", right: "\\)", display: false}
              ]
          }
      );
    </script>
</body>
</html>
于 2017-07-25T11:15:19.177 回答
3

截至 2020 年初，KaTeX 0.11.1 似乎支持内联数学，而不使用文森特答案中的“hack”。单美元分隔符$ ... $不起作用，但转义括号起作用\( ... \)，如下面的最小代码和片段所示：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Katex 0.11.1</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.css" integrity="sha384-zB1R0rpPzHqg7Kpt0Aljp8JPLqbXI3bhnPWROx27a9N0Ll6ZP/+DiW/UqRcLbRjq" crossorigin="anonymous">
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.js" integrity="sha384-y23I5Q6l+B6vatafAwxRu/0oK/79VlbSz7Q9aiSZUvyWYIYsd+qj+o24G5ZU2zJz" crossorigin="anonymous"></script>
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/contrib/auto-render.min.js" integrity="sha384-kWPLUVMOks5AQFrykwIup5lo0m3iMkkHrD0uJ4H5cjeGihAutqP0yW0J6dpFiVkI" crossorigin="anonymous" onload="renderMathInElement(document.body);"></script>
</head>

<body>
Lorem ipsum 
$e^{i\pi}+1=0$ <!-- does not work -->
dolor sit amet, 
\(e^{i\pi}+1=0\) <!-- this works -->
consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</body>
</html>


<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.css" integrity="sha384-zB1R0rpPzHqg7Kpt0Aljp8JPLqbXI3bhnPWROx27a9N0Ll6ZP/+DiW/UqRcLbRjq" crossorigin="anonymous">
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.js" integrity="sha384-y23I5Q6l+B6vatafAwxRu/0oK/79VlbSz7Q9aiSZUvyWYIYsd+qj+o24G5ZU2zJz" crossorigin="anonymous"></script>
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/contrib/auto-render.min.js" integrity="sha384-kWPLUVMOks5AQFrykwIup5lo0m3iMkkHrD0uJ4H5cjeGihAutqP0yW0J6dpFiVkI" crossorigin="anonymous" onload="renderMathInElement(document.body);"></script>
Lorem ipsum 
$e^{i\pi}+1=0$ <!-- does not work -->
dolor sit amet, 
\(e^{i\pi}+1=0\) <!-- this works -->
consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

经过一些测试，我无法使美元分隔符$ ... $起作用，但这里的括号\( ... \)默认工作是对 KaTeX 0.7.1 版的更新（无论如何仍然可用）。

于 2020-02-19T00:09:29.090 回答
1

render can take an extra third argument (default is false) to select inline displaymode: 

katex.render("c = \\pm\\sqrt{a^2 + b^2}", element, { displayMode: true });

Is this what you are looking for?

于 2015-05-08T07:41:03.090 回答