Help:KaTeX

KaTeX is a TeX rendering library—put simply, it processes TeX and produces correctly formatted text. It can be used for formatting mathematics, chemistry, and physical quantities.

The following MediaWiki parser tags are supported:

• <tex>
• <math>
• <ce>
• <chem>
• <quantity>

Tag parameters

When using KaTeX, the general format is:

<tex mode="display" fleqn>\TeX</tex>

The parts of the tag are:

• <tex> and </tex>: These are the markers which tell MediaWiki where your TeX begins and ends.
• mode="display" and fleqn: Parameters which change the way the TeX is rendered.
• \TeX: The TeX to be rendered by KaTeX.

The following parameters are supported:

• mode
  • mode="display": Center the TeX on the page and disable text wrapping.
• fleqn: Render the TeX flush left with a 2em left margin.
• leqno: Render \tag on the left instead of the right.

Errors

When you input invalid TeX into a parser tag, it will output it back out with the error available on hover.

An example would be \\\gasdfg\\?G/sdAS{\fgasdfgadfg.

Math

Refer to the KaTeX supported functions page.

<math mode="display">x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}</math>

x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

Chemistry

Refer to the mhchem for KaTeX guide (specifically, \ce).

Some example inline chemistry: <chem>^{235}_{92}U -> ^{4}_{2}He + ^{231}_{90}Th</chem>

Some example inline chemistry: \ce{^{235}_{92}U -> ^{4}_{2}He + ^{231}_{90}Th}

<chem mode="display">^{235}_{92}U -> ^{4}_{2}He + ^{231}_{90}Th</chem>

\ce{^{235}_{92}U -> ^{4}_{2}He + ^{231}_{90}Th}

<chem mode="display" fleqn>^{235}_{92}U -> ^{4}_{2}He + ^{231}_{90}Th</chem>

\ce{^{235}_{92}U -> ^{4}_{2}He + ^{231}_{90}Th}

Quantities

Refer to the mhchem for KaTeX guide (specifically, \pu).

The weight of an apple is around <quantity>100 g*N/n\Omega</quantity>.

The weight of an apple is around \pu{100 g*N/n\Omega}.

The weight of an apple is around <quantity>100 A*B/C2/D-4</quantity>.

The weight of an apple is around \pu{100 A*B/C2/D-4}.

Examples

• Distant Worlds Equations