Mathematical Expressions

Crypto Michael

To enable clear communication of mathematical expressions, GitSite supports LaTeX formatted math within Markdown. For more information, see LaTeX/Mathematics in Wikibooks.

GitSite's math rendering capability uses Katex: an open source, JavaScript-based display engine.

Writing inline expressions

You can surround the expression with dollar symbols $.

This sentence uses `$` delimiters to show math inline:  $\sqrt{3x-1}+(1+x)^2$.

This sentence uses $ delimiters to show math inline: $\sqrt{3x-1}+(1+x)^2$.

Writing expressions as blocks

To add a math expression as a block, add expression inside a fenced code block with the math identifier.

```math
\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)
```

You can set the alignment to center or right. For example, use align=center to set alignment to center:

```math align=center
\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)
```

You can still use GitHub-styled math expression block by start a new line and delimit the expression with two dollar symbols $$, but you cannot set alignment by this way (always display in center):

$$
\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)
$$

$$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$

Writing chemical equations

The Katex also supports chemical equations by the mhchem extension.

Chemical equation example: $\ce{CO2 + C -> 2 CO}$.

Chemical equation example: $\ce{CO2 + C -> 2 CO}$.

A complex chemical equation as a block:

```math
\ce{Hg^2+ ->[I-] HgI2 ->[I-] [Hg^{II}I4]^2-}
```

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