Table of contents

• Start
• Syntax $$
• Equations automatic numbering
• Greek letters
• Superscripts ^ and Subscripts _
• Groups {...}
• Fractions
• Fonts
• Spaces
• Boxed

Start

Include in page front matter as js_absolute

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-MML-AM_CHTML

Highlight renders

.mjx-chtml { background-color: oldlace; }

Hide until render is done

article { visibility: hidden; }

<script type="text/x-mathjax-config">
  MathJax.Hub.Queue(function () { document.querySelector("article").style.visibility = "initial"; });
</script>

Syntax $$

• Inline mode $$...$$ or \\(...\\) \(x=y\).
• Display mode (no numbering)
  • Newline before and after $$...$$
  • \\[...\\]
  • \begin{equation\*}...\end{equation\*} \begin{equation*}z=\pi\end{equation*}

Equations automatic numbering

Works with \begin{equation}...\end{equation}

• \label{...} used to reference.
• \ref{...} replaced with equation number anchor link \(\ref{ciao}\).
• \eqref{...} replaced with parenthesis equation number anchor link \(\eqref{ciao}\).

Configuration

<script type="text/x-mathjax-config">
  MathJax.Hub.Config({ TeX: { equationNumbers: {autoNumber: "AMS"} } });
</script>

Example

\begin{equation}w=\delta\label{ciao}\end{equation}

Greek letters

• Lowercase \alpha, \beta, …, \omega: \(\alpha, \beta, …, \omega\)
• Uppercase \Gamma, \Delta, …, \Omega: \(\Gamma, \Delta, …, \Omega\)

Superscripts ^ and Subscripts _

• x_i^2 gives \(x_i^2\)
• \log_2 x gives \(\log_2 x\)

Groups {...}

Single symbol or formula inside curly braces.

• x_{i^2} gives \(x_{i^2}\)

Fractions

frac applies to the next two groups.

• \frac ab \(\frac ab\)
• \frac{a+1}{b+1} \(\frac{a+1}{b+1}\)
• {a+1 \over b+1} \({a+1 \over b+1}\)

Fonts

• Sans serif \(\mathsf{mathsf}\)
• Typewriter \(\mathtt{mathtt}\)

Spaces

quad is space equal to the current font size.

• \(a\!b\) Negative \! -3/18 of a quad
• \(ab\) Default
• \(a\,b\) Small \, 3/18 of a quad
• \(a\:b\) Medium \: 4/18 of a quad
• \(a\;b\) Big \; 5/18 of a quad
• \(a\quad b\) \quad
• \(a\qquad b\) \qquad two quads

Boxed

$$\boxed{\operatorname{I'm\,boxed}}$$ gives \(\boxed{\operatorname{I'm\,boxed}}\)