Wikipedia:Editing Math

Editing Math Expressions in Wikipedia

This page is about editing mathematical expressions in wikipedia. Wikipedia uses a subset of TeX for describing mathematical equations.

All math expressions are written between the <math> and </math> tags.

SuperScripts and SubScripts

The following is a series of examples to edit math equations in wikipedia. The code in second line gives the output shown above.

$x^{2}+y^{2}=z^{2}$

<math> x^2 + y^2 = z^2 </math>

$x_{1}y_{1}+x_{2}y_{2}=2$

<math> x_1 + x_2 = 2 </math>

$sin^{2}(\theta )+cos^{2}(\theta )=1$

<math>sin^2(\theta)+cos^2(\theta)=1 </math>

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "http://localhost:6011/en.wikipedia.org/v1/":): {\displaystyle sec^2(\theta)-tan^2(\theta)=1}

<math> sec^2(\theta)-tan^2(\theta)=1 </math>

$cosec^{2}(\theta )-cotan^{2}(\theta )=1$

<math> cosec^2(\theta)-cotan^2(\theta)=1 </math>

This series of equations shown above illustrate the operations of exponentiation operator to be '^', and subscript operator to be '_'

Fractions

For fractions use the \frac{numerator}{denominator} commands. eg:

${\frac {a}{b}}={\frac {c}{d}}$ then ${\frac {a+b}{a-b}}={\frac {c+d}{c-d}}$

<math>\frac{a}{b}=\frac{c}{d} then \frac{a+b}{a-b}=\frac{c+d}{c-d}</math>

Square Root

Use the \sqrt{expression} syntax for square roots.

${\sqrt {\frac {c+d}{c-d}}}$

<math>\sqrt{\frac{c+d}{c-d}}</math>

Summation

We may use discrete summation of series by using this syntax

$\sum _{k=0}^{N}2^{k}={\frac {2^{N+1}-1}{2-1}}$

<math>\sum_{k=0}^{N}2^k=\frac{2^{N+1}-1}{2-1}</math>

Mathematical Symbols

Symbol Code	Symbol
<math> \forall </math>	$\forall$
<math> \hbar </math>	$\hbar$
<math> \emptyset </math>	$\emptyset$
<math> \exists </math>	$\exists$
<math> \imath </math>	$\imath$
<math> \nabla </math>	$\nabla$
<math> \neg </math>	$\neg$
<math> \flat </math>	$\flat$
<math> \ell </math>	$\ell$
<math> \top </math>	$\top$
<math> \natural </math>	$\natural$
<math> \wp </math>	$\wp$
<math> \bot </math>	$\bot$
<math> \sharp </math>	$\sharp$
<math> \Re </math>	$\Re$
<math> \| </math>	$\|$
<math> \clubsuit </math>	$\clubsuit$
<math> \Im </math>	$\Im$
<math> \angle </math>	$\angle$
<math> \diamondsuit </math>	$\diamondsuit$
<math> \partial </math>	$\partial$
<math> \triangle </math>	$\triangle$
<math> \heartsuit </math>	$\heartsuit$
<math> \infty </math>	$\infty$
<math> \backslash </math>	$\backslash$

Mathematical Functions

Function Symbol	Function
<math> \arccos </math>	$\arccos$
<math> \cos </math>	$\cos$
<math> \csc </math>	Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "http://localhost:6011/en.wikipedia.org/v1/":): {\displaystyle \csc }
<math> \exp </math>	$\exp$
<math> \ker </math>	$\ker$
<math> \limsup </math>	$\limsup$
<math> \min </math>	$\min$
<math> \sinh </math>	$\sinh$
<math> \arcsin </math>	$\arcsin$
<math> \cosh </math>	$\cosh$
<math> \deg </math>	$\deg$
<math> \gcd </math>	$\gcd$
<math> \lg </math>	$\lg$
<math> \ln </math>	$\ln$
<math> \Pr </math>	$\Pr$
<math> \sup </math>	$\sup$
<math> \arctan </math>	$\arctan$
<math> \cot </math>	$\cot$
<math> \det </math>	$\det$
<math> \hom </math>	$\hom$
<math> \lim </math>	$\lim$
<math> \log </math>	$\log$
<math> \sec </math>	$\sec$
<math> \tan </math>	$\tan$
<math> \arg </math>	$\arg$
<math> \coth </math>	$\coth$
<math> \dim </math>	$\dim$
<math> \inf </math>	$\inf$
<math> \liminf </math>	$\liminf$
<math> \max </math>	$\max$
<math> \sin </math>	$\sin$