katex-header.html

<link rel="stylesheet"
  href="https://cdn.jsdelivr.net/npm/katex@0.13.13/dist/katex.min.css"
  integrity="sha384-RZU/ijkSsFbcmivfdRBQDtwuwVqK7GMOw6IMvKyeWL2K5UAlyp6WonmB8m7Jd0Hn"
  crossorigin="anonymous" type="text/css">
<script defer
  src="https://cdn.jsdelivr.net/npm/katex@0.13.13/dist/katex.min.js"
  integrity="sha384-pK1WpvzWVBQiP0/GjnvRxV4mOb0oxFuyRxJlk6vVw146n3egcN5C925NCP7a7BY8"
  crossorigin="anonymous" type="text/javascript">
</script>
<script defer
  src="https://cdn.jsdelivr.net/npm/katex@0.13.13/dist/contrib/auto-render.min.js"
  integrity="sha384-vZTG03m+2yp6N6BNi5iM4rW4oIwk5DfcNdFfxkk9ZWpDriOkXX8voJBFrAO7MpVl"
  crossorigin="anonymous" type="text/javascript">
</script>

<script type="text/javascript">
  document.addEventListener("DOMContentLoaded", function() {
    renderMathInElement(document.body, {
        delimiters: [
            {left: "$$", right: "$$", display: true},
            {left: "\\(", right: "\\)", display: false},
            {left: "$", right: "$", display: false},
            {left: "\\[", right: "\\]", display: true}
        ],
        macros: {
            "\\Zq": "\\mathbb{Z}_q",
            "\\G": "\\mathbb{G}",
            "\\T": "\\mathbb{T}",
            "\\O": "\\mathcal{O}",
            "\\P": "\\mathcal{P}",
            "\\V": "\\mathcal{V}",
            "\\H": "\\mathcal{H}",
            "\\?": "\\stackrel{?}{=}",
        },
    });
  });
</script>