For inline math, enclose it in `\\(...\\)`.

For displayed formulas, use `\[...\]`.

These render differently.

Inline-mode looks like

\\( \sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6} \\) that.

Display-mode looks like

\[\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}\]

that.

For displayed formulas, use `\[...\]`.

These render differently.

Inline-mode looks like

\\( \sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6} \\) that.

Display-mode looks like

\[\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}\]

that.