$\TeX$ commands are available via MathJax; for example, `$\sum_{i = 1}^{\mu} a_i$`

will be rendered as $\sum_{i = 1}^{\mu} a_i$, and

`$$w(R'_1) > w(R_1) \implies A' <^{\mathrm{row}}_{w\mathrm{lex}} A$$`

will be rendered as $$w(R'_1) > w(R_1) \implies A' <^{\mathrm{row}}_{w\mathrm{lex}} A$$ in display mode.

You can link to a matrix, bound or comment by its ID: for example, `[[matrix:1]]`

will be rendered as Matrix 1, and `[[comment:187|Example]]`

will be rendered as Example. To link to a Zarankiewicz number, e.g. `[[number:chi(12,21)]]`

will be rendered as Ï‡(12,21).

To cite a reference, write e.g. `[[cite:Zar51]]`

for [Zar51] or `[[cite:Rom75|p. 189]]`

for [Rom75, p. 189].