+++
date    = "2023-10-18T16:55:14+00:00"
lastmod = "2023-10-18T16:55:14+00:00"
tags    = [ "web", "lists" ]
author  = "tdro"
+++

Mathematical Markup Language ([MathML](https://www.w3.org/Math/))? I've thought
about [LaTeX/TeX](https://ctan.org/tex?lang=en) strategies on the web for a bit
ever since someone asked years ago about different approaches. I never got to
poking around on my blog, but since then the masters have delivered unto us;

  1. [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML)
     ({{< abbr XML "Extensible Markup Language" >}} based web
     [specification](https://www.w3.org/TR/MathML3/))
  2. [KaTeX](https://katex.org/)
  3. [MathJax](https://www.mathjax.org/)

In format conversion land we've been given;
[LaTeXML](https://math.nist.gov/~BMiller/LaTeXML/),
[make4ht](https://ctan.org/pkg/make4ht?lang=en),
[texmath](https://github.com/jgm/texmath#readme),
[temml](https://github.com/ronkok/Temml#readme), and
[Pandoc](https://pandoc.org/MANUAL.html#math-rendering-in-html-1).

{{< disclose >}}
MathML looks [rather safe](https://caniuse.com/mathml). After that, I'd imagine
it's mostly incompatability struggles, XML spooks, and making math "write easy".
{{</ disclose >}}

```mathml { caption="A unilateral tolerance allowed in one (uni) direction (plus)" }
<math xmlns="http://www.w3.org/1998/Math/MathML" alttext="l=10\;_{-0.00}^{+0.05}\;mm" display="block">
  <mrow>
    <mi>l</mi>
    <mo>=</mo>
    <mrow>
      <msubsup>
        <mn>10</mn>
        <mrow>
          <mo>−</mo>
          <mn>0.00</mn>
        </mrow>
        <mrow>
          <mo>+</mo>
          <mn>0.05</mn>
        </mrow>
      </msubsup>
      <mo lspace="0.280em">⁢</mo>
      <mi>m</mi>
      <mo>⁢</mo>
      <mi>m</mi>
    </mrow>
  </mrow>
</math>
```

```mathml { caption="A bilateral tolerance allowed in two (bi) directions (plus and minus)" }
<math xmlns="http://www.w3.org/1998/Math/MathML" alttext="l=100\pm 0.05\;mm" display="block">
  <mrow>
    <mi>l</mi>
    <mo>=</mo>
    <mrow>
      <mn>100</mn>
      <mo>±</mo>
      <mrow>
        <mn>0.05</mn>
        <mo lspace="0.280em">⁢</mo>
        <mi>m</mi>
        <mo>⁢</mo>
        <mi>m</mi>
      </mrow>
    </mrow>
  </mrow>
</math>
```