This page aims to cover a wide range of mathematical expressions and was generated from the documentation of the English Wikipedia [1]. Please refer to phab:T346795 for further information and to Help:MathTest for a version of this page that uses the configured rendering mode.

This page forces rendering using the new native MathML mode.

Test-Tables

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Functions, symbols, special characters

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Accents/diacritics

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\dot{a}, \ddot{a}, \acute{a}, \grave{a} a˙,a¨,a´,a`
\check{a}, \breve{a}, \tilde{a}, \bar{a} aˇ,a˘,a~,a¯
\hat{a}, \widehat{a}, \vec{a} a^,a^,a

Standard numerical functions

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\exp_a b = a^b, \exp b = e^b, 10^m expab=ab,expb=eb,10m
\ln c, \lg d = \log e, \log_{10} f lnc,lgd=loge,log10f
\sin a, \cos b, \tan c, \cot d, \sec e, \csc f sina,cosb,tanc,cotd,sece,cscf
\arcsin h, \arccos i, \arctan j arcsinh,arccosi,arctanj
\sinh k, \cosh l, \tanh m, \coth n sinhk,coshl,tanhm,cothn
\operatorname{sh}\,k, \operatorname{ch}\,l, \operatorname{th}\,m, \operatorname{coth}\,n shk,chl,thm,cothn
\operatorname{argsh}\,o, \operatorname{argch}\,p, \operatorname{argth}\,q argsho,argchp,argthq
\sgn r, \left\vert s \right\vert sgnr,|s|
\min(x,y), \max(x,y) min(x,y),max(x,y)

Bounds

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\min x, \max y, \inf s, \sup t minx,maxy,infs,supt
\lim u, \liminf v, \limsup w limu,lim infv,lim supw
\dim p, \deg q, \det m, \ker\phi dimp,degq,detm,kerϕ

Projections

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\Pr j, \hom l, \lVert z \rVert, \arg z Prj,homl,z,argz

Differentials and derivatives

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dt, \operatorname{d}\!t, \partial t, \nabla\psi dt,dt,t,ψ
dy/dx, \operatorname{d}\!y/\operatorname{d}\!x, {dy \over dx}, {\operatorname{d}\!y\over\operatorname{d}\!x}, {\partial^2\over\partial x_1\partial x_2}y dy/dx,dy/dx,dydx,dydx,2x1x2y
\prime, \backprime, f^\prime, f', f'', f^{(3)}, \dot y, \ddot y ,,f,f,f,f(3),y˙,y¨

Letter-like symbols or constants

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\infty, \aleph, \complement, \backepsilon, \eth, \Finv, \hbar ,,,,ð,,
\Im, \imath, \jmath, \Bbbk, \ell, \mho, \wp, \Re, \circledS ,ı,ȷ,k,,,,,

Modular arithmetic

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s_k \equiv 0 \pmod{m} sk0(modm)
a\,\bmod\,b amodb
\gcd(m, n), \operatorname{lcm}(m, n) gcd(m,n),lcm(m,n)
\mid, \nmid, \shortmid, \nshortmid ,,,

Radicals

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\surd, \sqrt{2}, \sqrt[n]{}, \sqrt[3]{x^3+y^3 \over 2} ,2,n,x3+y323

Operators

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+, -, \pm, \mp, \dotplus +,,±,,
\times, \div, \divideontimes, /, \backslash ×,÷,,/,
\cdot, * \ast, \star, \circ, \bullet ,*,,,
\boxplus, \boxminus, \boxtimes, \boxdot ,,,
\oplus, \ominus, \otimes, \oslash, \odot ,,,,
\circleddash, \circledcirc, \circledast ,,
\bigoplus, \bigotimes, \bigodot ,,

Sets

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\{ \}, \O \empty \emptyset, \varnothing {},,
\in, \notin \not\in, \ni, \not\ni ,∉,,∌
\cap, \Cap, \sqcap, \bigcap ,,,
\cup, \Cup, \sqcup, \bigcup, \bigsqcup, \uplus, \biguplus ,,,,,,
\setminus, \smallsetminus, \times ,,×
\subset, \Subset, \sqsubset ,,
\supset, \Supset, \sqsupset ,,
\subseteq, \nsubseteq, \subsetneq, \varsubsetneq, \sqsubseteq ,,,,
\supseteq, \nsupseteq, \supsetneq, \varsupsetneq, \sqsupseteq ,,,,
\subseteqq, \nsubseteqq, \subsetneqq, \varsubsetneqq ,,,
\supseteqq, \nsupseteqq, \supsetneqq, \varsupsetneqq ,,,

Relations

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=, \ne, \neq, \equiv, \not\equiv =,,,,≢
\doteq, \doteqdot, \overset{\underset{\mathrm{def}}{}}{=}, := ,,=def,:=
\sim, \nsim, \backsim, \thicksim, \simeq, \backsimeq, \eqsim, \cong, \ncong ,,,,,,,,
\approx, \thickapprox, \approxeq, \asymp, \propto, \varpropto ,,,,,
<, \nless, \ll, \not\ll, \lll, \not\lll, \lessdot <,,,≪̸,,⋘̸,
>, \ngtr, \gg, \not\gg, \ggg, \not\ggg, \gtrdot >,,,≫̸,,⋙̸,
\le \leq, \lneq, \leqq, \nleqq, \lneqq, \lvertneqq ,,,,,
\ge \geq, \gneq, \geqq, \ngeqq, \gneqq, \gvertneqq ,,,,,
\lessgtr \lesseqgtr \lesseqqgtr \gtrless \gtreqless \gtreqqless
\leqslant, \nleqslant, \eqslantless ,,
\geqslant, \ngeqslant, \eqslantgtr ,,
\lesssim, \lnsim, \lessapprox, \lnapprox ,,,
\gtrsim, \gnsim, \gtrapprox, \gnapprox ,,,
\prec, \nprec, \preceq, \npreceq, \precneqq ,,,,
\succ, \nsucc, \succeq, \nsucceq, \succneqq ,,,,
\preccurlyeq, \curlyeqprec ,
\succcurlyeq, \curlyeqsucc ,
\precsim, \precnsim, \precapprox, \precnapprox ,,,
\succsim, \succnsim, \succapprox, \succnapprox ,,,

Geometric

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\parallel, \nparallel, \shortparallel, \nshortparallel ,,,
\perp, \angle, \sphericalangle, \measuredangle, 45^\circ ,,,,45
\Box, \blacksquare, \diamond, \Diamond \lozenge, \blacklozenge, \bigstar ,,,,,
\bigcirc, \triangle \bigtriangleup, \bigtriangledown ,,
\vartriangle, \triangledown ,
\blacktriangle, \blacktriangledown, \blacktriangleleft, \blacktriangleright ,,,

Logic

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\forall, \exists, \nexists ,,
\therefore, \because, \And ,,&
\or \lor \vee, \curlyvee, \bigvee ,,
\and \land \wedge, \curlywedge, \bigwedge ,,
\bar{q}, \bar{abc}, \overline{q}, \overline{abc},

\lnot \neg, \not\operatorname{R}, \bot, \top

q¯,abc¯,q,abc,

¬¬,R,,

\vdash \dashv, \vDash, \Vdash, \models ,,,
\Vvdash \nvdash \nVdash \nvDash \nVDash
\ulcorner \urcorner \llcorner \lrcorner

Arrows

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\Rrightarrow, \Lleftarrow ,
\Rightarrow, \nRightarrow, \Longrightarrow \implies ,,
\Leftarrow, \nLeftarrow, \Longleftarrow ,,
\Leftrightarrow, \nLeftrightarrow, \Longleftrightarrow \iff ,,
\Uparrow, \Downarrow, \Updownarrow ,,
\rightarrow \to, \nrightarrow, \longrightarrow ,,
\leftarrow \gets, \nleftarrow, \longleftarrow ,,
\leftrightarrow, \nleftrightarrow, \longleftrightarrow ,,
\uparrow, \downarrow, \updownarrow ,,
\nearrow, \swarrow, \nwarrow, \searrow ,,,
\mapsto, \longmapsto ,
\rightharpoonup \rightharpoondown \leftharpoonup \leftharpoondown \upharpoonleft \upharpoonright \downharpoonleft \downharpoonright \rightleftharpoons \leftrightharpoons
\curvearrowleft \circlearrowleft \Lsh \upuparrows \rightrightarrows \rightleftarrows \rightarrowtail \looparrowright
\curvearrowright \circlearrowright \Rsh \downdownarrows \leftleftarrows \leftrightarrows \leftarrowtail \looparrowleft
\hookrightarrow \hookleftarrow \multimap \leftrightsquigarrow \rightsquigarrow \twoheadrightarrow \twoheadleftarrow

Special

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\amalg \P \S \% \dagger \ddagger \ldots \cdots ⨿§%
\smile \frown \wr \triangleleft \triangleright
\diamondsuit, \heartsuit, \clubsuit, \spadesuit, \Game, \flat, \natural, \sharp ,,,,,,,

Unsorted (new stuff)

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\diagup \diagdown \centerdot \ltimes \rtimes \leftthreetimes \rightthreetimes
\eqcirc \circeq \triangleq \bumpeq \Bumpeq \doteqdot \risingdotseq \fallingdotseq
\intercal \barwedge \veebar \doublebarwedge \between \pitchfork
\vartriangleleft \ntriangleleft \vartriangleright \ntriangleright
\trianglelefteq \ntrianglelefteq \trianglerighteq \ntrianglerighteq

For a little more semantics on these symbols, see the brief TeX Cookbook.

Larger expressions

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Subscripts, superscripts, integrals

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Feature Syntax How it looks rendered
Superscript a^2 a2
Subscript a_2 a2
Grouping 10^{30} a^{2+2} 1030a2+2
a_{i,j} b_{f'} ai,jbf
Combining sub & super without and with horizontal separation x_2^3 x23
{x_2}^3 x23
Super super 10^{10^{8}} 10108
Preceding and/or additional sub & super \sideset{_1^2}{_3^4}\prod_a^b 3412ab
{}_1^2\!\Omega_3^4 12Ω34
Stacking \overset{\alpha}{\omega} ωα
\underset{\alpha}{\omega} ωα
\overset{\alpha}{\underset{\gamma}{\omega}} ωγα
\stackrel{\alpha}{\omega} ωα
Derivatives x', y'', f', f'' x,y,f,f
x^\prime, y^{\prime\prime} x,y
Derivative dots \dot{x}, \ddot{x} x˙,x¨
Underlines, overlines, vectors \hat a \ \bar b \ \vec c a^b¯c
\overrightarrow{a b} \ \overleftarrow{c d} \ \widehat{d e f} abcddef^
\overline{g h i} \ \underline{j k l} ghijkl_
Arc (workaround) \overset{\frown} {AB} AB
Arrows A \xleftarrow{n+\mu-1} B \xrightarrow[T]{n\pm i-1} C An+μ1BTn±i1C
Overbraces \overbrace{ 1+2+\cdots+100 }^{5050} 1+2++1005050
Underbraces \underbrace{ a+b+\cdots+z }_{26} a+b++z26
Sum \sum_{k=1}^N k^2 k=1Nk2
Sum (force \textstyle) \textstyle \sum_{k=1}^N k^2 k=1Nk2
Sum in a fraction (default \textstyle) \frac{\sum_{k=1}^N k^2}{a} k=1Nk2a
Sum in a fraction (force \displaystyle) \frac{\displaystyle \sum_{k=1}^N k^2}{a} k=1Nk2a
Sum in a fraction (alternative limits style) \frac{\sum\limits^{^N}_{k=1} k^2}{a} k=1Nk2a
Product \prod_{i=1}^N x_i i=1Nxi
Product (force \textstyle) \textstyle \prod_{i=1}^N x_i i=1Nxi
Coproduct \coprod_{i=1}^N x_i i=1Nxi
Coproduct (force \textstyle) \textstyle \coprod_{i=1}^N x_i i=1Nxi
Limit \lim_{n \to \infty}x_n limnxn
Limit (force \textstyle) \textstyle \lim_{n \to \infty}x_n limnxn
Integral \int\limits_{1}^{3}\frac{e^3/x}{x^2}\, dx 13e3/xx2dx
Integral (alternative limits style) \int_{1}^{3}\frac{e^3/x}{x^2}\, dx 13e3/xx2dx
Integral (force \textstyle) \textstyle \int\limits_{-N}^{N} e^x\, dx NNexdx
Integral (force \textstyle, alternative limits style) \textstyle \int_{-N}^{N} e^x\, dx NNexdx
Double integral \iint\limits_D \, dx\,dy Ddxdy
Triple integral \iiint\limits_E \, dx\,dy\,dz Edxdydz
Quadruple integral \iiiint\limits_F \, dx\,dy\,dz\,dt Fdxdydzdt
Line or path integral \int_{(x,y)\in C} x^3\, dx + 4y^2\, dy (x,y)Cx3dx+4y2dy
Closed line or path integral \oint_{(x,y)\in C} x^3\, dx + 4y^2\, dy (x,y)Cx3dx+4y2dy
Intersections \bigcap_{i=_1}^n E_i i=1nEi
Unions \bigcup_{i=_1}^n E_i i=1nEi

Fractions, matrices, multilines

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Feature Syntax How it looks rendered
Fractions \frac{2}{4}=0.5 or {2 \over 4}=0.5 24=0.5
Small fractions \tfrac{2}{4} = 0.5 24=0.5
Large (normal) fractions \dfrac{2}{4} = 0.5 \qquad \dfrac{2}{c + \dfrac{2}{d + \dfrac{2}{4}}} = a 24=0.52c+2d+24=a
Large (nested) fractions \cfrac{2}{c + \cfrac{2}{d + \cfrac{2}{4}}} = a 2c+2d+24=a
Cancellations in fractions \cfrac{x}{1 + \cfrac{\cancel{y}}{\cancel{y}}} = \cfrac{x}{2} x1+yy=x2
Binomial coefficients \binom{n}{k} (nk)
Small binomial coefficients \tbinom{n}{k} (nk)
Large (normal) binomial coefficients \dbinom{n}{k} (nk)
Matrices
\begin{matrix}
x & y \\
z & v
\end{matrix}
xyzv
\begin{vmatrix}
x & y \\
z & v
\end{vmatrix}
|xyzv|
\begin{Vmatrix}
x & y \\
z & v
\end{Vmatrix}
xyzv
\begin{bmatrix}
0 & \cdots & 0 \\
\vdots & \ddots & \vdots \\
0 & \cdots & 0
\end{bmatrix}
[0000]
\begin{Bmatrix}
x & y \\
z & v
\end{Bmatrix}
{xyzv}
\begin{pmatrix}
x & y \\
z & v
\end{pmatrix}
(xyzv)
\bigl( \begin{smallmatrix}
a&b\\ c&d
\end{smallmatrix} \bigr)
(abcd)
Case distinctions
f(n) =
\begin{cases}
n/2, & \text{if }n\text{ is even} \\
3n+1, & \text{if }n\text{ is odd}
\end{cases}
f(n)={n/2,if n is even3n+1,if n is odd
Multiline equations
\begin{align}
f(x) & = (a+b)^2 \\
& = a^2+2ab+b^2 \\
\end{align}
f(x)=(a+b)2=a2+2ab+b2
\begin{alignat}{2}
f(x) & = (a-b)^2 \\
& = a^2-2ab+b^2 \\
\end{alignat}
f(x)=(ab)2=a22ab+b2
Multiline equations (must define number of columns used ({lcr}) (should not be used unless needed)
\begin{array}{lcl}
z & = & a \\
f(x,y,z) & = & x + y + z
\end{array}
z=af(x,y,z)=x+y+z
Multiline equations (more)
\begin{array}{lcr}
z & = & a \\
f(x,y,z) & = & x + y + z
\end{array}
z=af(x,y,z)=x+y+z
Breaking up a long expression so that it wraps when necessary, at the expense of destroying correct spacing
<nowiki>
<math forcemathmode='native'>f(x) \,\!</math>
<math forcemathmode='native'>= \sum_{n=0}^\infty a_n x^n </math>
<math forcemathmode='native'>= a_0+a_1x+a_2x^2+\cdots</math>
</nowiki>
f(x)=n=0anxn=a0+a1x+a2x2+
Simultaneous equations
\begin{cases}
3x + 5y + z \\
7x - 2y + 4z \\
-6x + 3y + 2z
\end{cases}
{3x+5y+z7x2y+4z6x+3y+2z
Arrays
\begin{array}{|c|c||c|} a & b & S \\
\hline
0&0&1\\
0&1&1\\
1&0&1\\
1&1&0\\
\end{array}
abS001011101110

Parenthesizing big expressions, brackets, bars

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Feature Syntax How it looks rendered
Bad ( \frac{1}{2} ) (12)
Good \left ( \frac{1}{2} \right ) (12)

You can use various delimiters with \left and \right:

Feature Syntax How it looks rendered
Parentheses \left ( \frac{a}{b} \right ) (ab)
Brackets \left [ \frac{a}{b} \right ] \quad
\left \lbrack \frac{a}{b} \right \rbrack
[ab][ab]
Braces \left \{ \frac{a}{b} \right \} \quad
\left \lbrace \frac{a}{b} \right \rbrace
{ab}{ab}
Angle brackets \left \langle \frac{a}{b} \right \rangle ab
Bars and double bars \left | \frac{a}{b} \right \vert \quad
\left \Vert \frac{c}{d} \right \|
|ab|cd
Floor and ceiling functions: \left \lfloor \frac{a}{b} \right \rfloor \quad
\left \lceil \frac{c}{d} \right \rceil
abcd
Slashes and backslashes \left / \frac{a}{b} \right \backslash /ab\
Up, down, and up-down arrows \left \uparrow \frac{a}{b} \right \downarrow \quad
\left \Uparrow \frac{a}{b} \right \Downarrow \quad
\left \updownarrow \frac{a}{b} \right \Updownarrow
ababab
Delimiters can be mixed,
as long as \left and \right match
\left [ 0,1 \right )
\left \langle \psi \right |
[0,1)
ψ|
Use \left. and \right. if you
do not want a delimiter to appear
\left . \frac{A}{B} \right \} \to X AB}X
Size of the delimiters \big( \Big( \bigg( \Bigg( \dots \Bigg] \bigg] \Big] \big] ((((]]]]
\big\{ \Big\{ \bigg\{ \Bigg\{ \dots
\Bigg\rangle \bigg\rangle \Big\rangle \big\rangle
{{{{
\big\| \Big\| \bigg\| \Bigg\| \dots \Bigg| \bigg| \Big| \big| ||||
\big\lfloor \Big\lfloor \bigg\lfloor \Bigg\lfloor \dots
\Bigg\rceil \bigg\rceil \Big\rceil \big\rceil
\big\uparrow \Big\uparrow \bigg\uparrow \Bigg\uparrow \dots
\Bigg\Downarrow \bigg\Downarrow \Big\Downarrow \big\Downarrow
\big\updownarrow \Big\updownarrow \bigg\updownarrow \Bigg\updownarrow \dots
\Bigg\Updownarrow \bigg\Updownarrow \Big\Updownarrow \big\Updownarrow
\big / \Big / \bigg / \Bigg / \dots
\Bigg\backslash \bigg\backslash \Big\backslash \big\backslash
////\\\\

Equation numbering

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The templates {{NumBlk}} and {{EquationRef}} can be used to number equations. The template {{EquationNote}} can be used to refer to a numbered equation from surrounding text. For example, the following syntax:

{{NumBlk|:|<math forcemathmode='native'>x^2 + y^2 + z^2 = 1 \,</math>|{{EquationRef|1}}}}

produces the following result (note the equation number in the right margin):

x2+y2+z2=1

 

 

 

 

(1)

Later on, the text can refer to this equation by its number using syntax like this:

As seen in equation ({{EquationNote|1}}), blah blah blah...

The result looks like this:

As seen in equation (1), blah blah blah...

Note that the equation number produced by {{EquationNote}} is a link that the user can click to go immediately to the cited equation.

Alphabets and typefaces

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Texvc cannot render arbitrary Unicode characters. Those it can handle can be entered by the expressions below. For others, such as Cyrillic, they can be entered as Unicode or HTML entities in running text, but cannot be used in displayed formulas.

Greek alphabet
\Alpha \Beta \Gamma \Delta \Epsilon \Zeta \Eta \Theta ABΓΔEZHΘ
\Iota \Kappa \Lambda \Mu \Nu \Xi \Pi \Rho IKΛMNΞΠP
\Sigma \Tau \Upsilon \Phi \Chi \Psi \Omega ΣTΥΦXΨΩ
\alpha \beta \gamma \delta \epsilon \zeta \eta \theta αβγδϵζηθ
\iota \kappa \lambda \mu \nu \xi \pi \rho ικλμνξπρ
\sigma \tau \upsilon \phi \chi \psi \omega στυϕχψω
\varepsilon \digamma \varkappa \varpi εϝϰϖ
\varrho \varsigma \vartheta \varphi ϱςϑφ
Hebrew symbols
\aleph \beth \gimel \daleth
Blackboard bold/scripts
\mathbb{ABCDEFGHI} 𝔸𝔹𝔻𝔼𝔽𝔾𝕀
\mathbb{JKLMNOPQR} 𝕁𝕂𝕃𝕄𝕆
\mathbb{STUVWXYZ} 𝕊𝕋𝕌𝕍𝕎𝕏𝕐
Boldface
\mathbf{ABCDEFGHI} ABCDEFGHI
\mathbf{JKLMNOPQR} JKLMNOPQR
\mathbf{STUVWXYZ} STUVWXYZ
\mathbf{abcdefghijklm} abcdefghijklm
\mathbf{nopqrstuvwxyz} nopqrstuvwxyz
\mathbf{0123456789} 0123456789
Boldface (Greek)
\boldsymbol{\Alpha\Beta\Gamma\Delta\Epsilon\Zeta\Eta\Theta} ABΓΔEZHΘ
\boldsymbol{\Iota\Kappa\Lambda\Mu\Nu\Xi\Pi\Rho} IKΛMNΞΠP
\boldsymbol{\Sigma\Tau\Upsilon\Phi\Chi\Psi\Omega} ΣTΥΦXΨΩ
\boldsymbol{\alpha\beta\gamma\delta\epsilon\zeta\eta\theta} αβγδϵζηθ
\boldsymbol{\iota\kappa\lambda\mu\nu\xi\pi\rho} ικλμνξπρ
\boldsymbol{\sigma\tau\upsilon\phi\chi\psi\omega} στυϕχψω
\boldsymbol{\varepsilon\digamma\varkappa\varpi} εϝϰϖ
\boldsymbol{\varrho\varsigma\vartheta\varphi} ϱςϑφ
Italics (default for Latin alphabet)
\mathit{0123456789} 0123456789
Greek italics (default for lowercase Greek)
\mathit{\Alpha\Beta\Gamma\Delta\Epsilon\Zeta\Eta\Theta} ABΓΔEZHΘ
\mathit{\Iota\Kappa\Lambda\Mu\Nu\Xi\Pi\Rho} IKΛMNΞΠP
\mathit{\Sigma\Tau\Upsilon\Phi\Chi\Psi\Omega} ΣTΥΦXΨΩ
Roman typeface
\mathrm{ABCDEFGHI} ABCDEFGHI
\mathrm{JKLMNOPQR} JKLMNOPQR
\mathrm{STUVWXYZ} STUVWXYZ
\mathrm{abcdefghijklm} abcdefghijklm
\mathrm{nopqrstuvwxyz} nopqrstuvwxyz
\mathrm{0123456789} 0123456789
Sans serif
\mathsf{ABCDEFGHI} ABCDEFGHI
\mathsf{JKLMNOPQR} JKLMNOPQR
\mathsf{STUVWXYZ} STUVWXYZ
\mathsf{abcdefghijklm} abcdefghijklm
\mathsf{nopqrstuvwxyz} nopqrstuvwxyz
\mathsf{0123456789} 0123456789
Sans serif Greek (capital only)
\mathsf{\Alpha \Beta \Gamma \Delta \Epsilon \Zeta \Eta \Theta} ABΓΔEZHΘ
\mathsf{\Iota \Kappa \Lambda \Mu \Nu \Xi \Pi \Rho} IKΛMNΞΠP
\mathsf{\Sigma \Tau \Upsilon \Phi \Chi \Psi \Omega} ΣTΥΦXΨΩ
Calligraphy/script
\mathcal{ABCDEFGHI} 𝒜𝒞𝒟𝒢
\mathcal{JKLMNOPQR} 𝒥𝒦𝒩𝒪𝒫𝒬
\mathcal{STUVWXYZ} 𝒮𝒯𝒰𝒱𝒲𝒳𝒴𝒵
Fraktur typeface
\mathfrak{ABCDEFGHI} ABCDEFGHI
\mathfrak{JKLMNOPQR} JKLMNOPQR
\mathfrak{STUVWXYZ} STUVWXYZ
\mathfrak{abcdefghijklm} abcdefghijklm
\mathfrak{nopqrstuvwxyz} nopqrstuvwxyz
\mathfrak{0123456789} 0123456789

Mixed text faces

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Feature Syntax How it looks rendered
Italicised characters (spaces are ignored) x y z xyz
Non-italicised characters \text{x y z} x y z
Mixed italics (bad) \text{if} n \text{is even} ifnis even
Mixed italics (good) \text{if }n\text{ is even} if n is even
Mixed italics (alternative: ~ or "\ " forces a space) \text{if}~n\ \text{is even} if

Color

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Equations can use color:

  • {\color{Blue}x^2}+{\color{YellowOrange}2x}-{\color{OliveGreen}1}
    x2+2x1
  • x_{1,2}=\frac{-b\pm\sqrt{\color{Red}b^2-4ac}}{2a}
    x1,2=b±b24ac2a


Some color names are predeclared according to the following table, you can use them directly for the rendering of formulas or for declaring the intended color of the page background.

Colors supported
Apricot Aquamarine Bittersweet Black
Blue BlueGreen BlueViolet BrickRed
Brown BurntOrange CadetBlue CarnationPink
Cerulean CornflowerBlue Cyan Dandelion
DarkOrchid Emerald ForestGreen Fuchsia
Goldenrod Gray Green GreenYellow
JungleGreen Lavender LimeGreen Magenta
Mahogany Maroon Melon MidnightBlue
Mulberry NavyBlue OliveGreen Orange
OrangeRed Orchid Peach Periwinkle
PineGreen Plum ProcessBlue Purple
RawSienna Red RedOrange RedViolet
Rhodamine RoyalBlue RoyalPurple RubineRed
Salmon SeaGreen Sepia SkyBlue
SpringGreen Tan TealBlue Thistle

Note that color should not be used as the only way to identify something, because it will become meaningless on black-and-white media or for color-blind people. See Wikipedia:Manual of Style (accessibility)#Color.

Formatting issues

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Spacing

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Note that TeX handles most spacing automatically, but you may sometimes want manual control.

Feature Syntax How it looks rendered
double quad space a \qquad b ab
quad space a \quad b ab
text space a\ b ab
text space without PNG conversion a \mbox{ } b a b
large space a\;b ab
medium space a\&gt;b [not supported]
small space a\,b ab
tiny space (use for multiplication of factors) ab ab
no space (use for multi-letter variables) \mathit{ab} ab
small negative space a\!b ab

Automatic spacing may be broken in very long expressions (because they produce an overfull hbox in TeX):

0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+\cdots
0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+

This can be remedied by putting a pair of braces { } around the whole expression:

{0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+\cdots}
0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+

Alignment with normal text flow

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Due to the default CSS

img.tex { vertical-align: middle; }

an inline expression like NNexdx should look good.

If you need to align it otherwise, use style="vertical-align:-100%;">... and play with the vertical-align argument until you get it right; however, how it looks may depend on the browser and the browser settings.

Also note that if you rely on this workaround, if/when the rendering on the server gets fixed in future releases, as a result of this extra manual offset your formulae will suddenly be aligned incorrectly. So use it sparingly, if at all.

Centering

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We introduce the new attribute display with the two options "inline" and "block".

Inline

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If the the value of the display attribute is inline the render will render math in inline mode, i.e. there will be no new paragraph for the equation and the operators will be rendered consuming only little vertical space.

Example
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The sum i=02i converges to 2.

The next line-width is not disturbed by large operators.

The code for the math example reads:

<math forcemathmode='native' display="inline">\sum_{i=0}^\infty 2^{-i}</math>
Technical implementation
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Technically it will add the command \textstyle will be added to the user input before the tex command is passed to the renderer. The result will be displayed without further by outputting the image or MathMLelement to the page.

Remark
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The convention https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style_(mathematics)#Using_HTML is really annoying. I'd prefer to use inline math for that, since it helps to differentiate between math and other elements.

Block

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In block-style the equation is rendered in its own paragraph and the operator are rendered consuming less horizontal space.

Example
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The equation geometric series:i=02i=2 is used in a joke about mathematicians entering a bar and ordering beer.

It was entered as

<math forcemathmode='native' display="block">\text{geometric series:}\quad \sum_{i=0}^\infty 2^{-i}=2 </math>
Technical implementation
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Technically it will add the command \displaystyle will be added to the user input, if the user input does not contain the string \displaystyle or \align before the tex command is passed to the renderer. The result will be displayed in a new paragraph. Therefore the style of the MathImage is altered i.e. the style attribute "display:block;margin:auto" is added. For MathML it is ensured that display=inline is replaced by display block which produces a new paragraph

Discussion
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Fréderic Wang would prefer that displaystyle is always added in depended of the fact if \displaystlye is already in the equation. He remarks that it has to be checked if that works if the equation starts with \begin.

Not specified

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If nothing is specified the current behavior is preserved. That means all equation are rendered in display style but not using a new paragraph.

Example
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The sum i=02i converges to 2.

The next line-width is disturbed by large operators.

The code for the math example reads:

<math forcemathmode='native'>\sum_{i=0}^\infty 2^{-i}</math>


The equation

geometric series:i=02i=2

is used in a joke about mathematicians entering a bar and ordering beer.

It was entered as

<math forcemathmode='native'>\text{geometric series:}\quad \sum_{i=0}^\infty 2^{-i}=2 </math>

Examples of implemented TeX formulas

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Quadratic polynomial

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ax2+bx+c=0

<math forcemathmode='native'>ax^2 + bx + c = 0</math>

Quadratic formula

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x=b±b24ac2a

<math forcemathmode='native'>x={-b\pm\sqrt{b^2-4ac} \over 2a}</math>

Tall parentheses and fractions

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2=((3x)×23x)

<math forcemathmode='native'>2 = \left(
\frac{\left(3-x\right) \times 2}{3-x}
\right)</math>

Snew=Sold(5T)22

<math forcemathmode='native'>S_{\text{new}} = S_{\text{old}} - \frac{ \left( 5-T \right) ^2} {2}</math>

Integrals

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axasf(y)dyds=axf(y)(xy)dy

<math forcemathmode='native'>\int_a^x \!\!\!\int_a^s f(y)\,dy\,ds
= \int_a^x f(y)(x-y)\,dy</math>

Matrices and determinants

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det(AλI)=0

<math forcemathmode='native'>\det(\mathsf{A}-\lambda\mathsf{I}) = 0</math>

Summation

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i=0n1i

<math forcemathmode='native'>\sum_{i=0}^{n-1} i</math>

m=1n=1m2n3m(m3n+n3m)

<math forcemathmode='native'>\sum_{m=1}^\infty\sum_{n=1}^\infty\frac{m^2\,n}
{3^m\left(m\,3^n+n\,3^m\right)}</math>

Differential equation

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u+p(x)u+q(x)u=f(x),x>a

<math forcemathmode='native'>u'' + p(x)u' + q(x)u=f(x),\quad x>a</math>

Complex numbers

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|z¯|=|z|,|(z¯)n|=|z|n,arg(zn)=narg(z)

<math forcemathmode='native'>|\bar{z}| = |z|,
|(\bar{z})^n| = |z|^n,
\arg(z^n) = n \arg(z)</math>

Limits

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limzz0f(z)=f(z0)

<math forcemathmode='native'>\lim_{z\rightarrow z_0} f(z)=f(z_0)</math>

Integral equation

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ϕn(κ)=14π2κ20sin(κR)κRR[R2Dn(R)R]dR

<math forcemathmode='native'>\phi_n(\kappa) =
\frac{1}{4\pi^2\kappa^2} \int_0^\infty
\frac{\sin(\kappa R)}{\kappa R}
\frac{\partial}{\partial R}
\left[R^2\frac{\partial D_n(R)}{\partial R}\right]\,dR</math>

Example

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ϕn(κ)=0.033Cn2κ11/3,1L0κ1l0

<math forcemathmode='native'>\phi_n(\kappa) =
0.033C_n^2\kappa^{-11/3},\quad
\frac{1}{L_0}\ll\kappa\ll\frac{1}{l_0}</math>

Continuation and cases

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f(x)={11x<012x=01x2otherwise

<math forcemathmode='native'>
f(x) =
\begin{cases}
1 & -1 \le x < 0 \\
\frac{1}{2} & x = 0 \\
1 - x^2 & \text{otherwise}
\end{cases}
</math>

Prefixed subscript

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pFq(a1,,ap;c1,,cq;z)=n=0(a1)n(ap)n(c1)n(cq)nznn!

 <math forcemathmode='native'>{}_pF_q(a_1,\dots,a_p;c_1,\dots,c_q;z)
= \sum_{n=0}^\infty
\frac{(a_1)_n\cdots(a_p)_n}{(c_1)_n\cdots(c_q)_n}
\frac{z^n}{n!}</math>

Fraction and small fraction

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abab

<math forcemathmode='native'>\frac{a}{b}\ \tfrac{a}{b}</math>

Area of a quadrilateral

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S=dDsinα

<math forcemathmode='native'>S=dD\,\sin\alpha\!</math>

Volume of a sphere-stand

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V=16πh[3(r12+r22)+h2]

<math forcemathmode='native'>V=\frac16\pi h\left[3\left(r_1^2+r_2^2\right)+h^2\right]</math>

Multiple equations

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u=12(x+y)x=12(u+v)v=12(xy)y=12(uv)  

Test cases from parserTests

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  • pre-save transform: comment containing math
  • BUG 1887: A ‎<math> with a thumbnail- we don't render math in the parsertests by default, so math is not stripped and turns up as escaped <math> tags.
     
    2+2
  • BUG 1887, part 2: A ‎<math> with a thumbnail- math enabled
     
    2+2
  • Math section safety when disabled <script>alert(document.cookies);</script>
  • BUG 26380: Add \widetilde support to match \widehat
    • x^
    • x~
  • BUG 27324: Euro symbol for math
    • 200
  • BUG 27754: Archaic Greek letters for math (may require texlive-lang-greek)
    • ϝ
    • Ϙϙϙ
    • Ϝ
    • Ϟϟ
    • Ϡϡ
    • Ϛϛϛ
  • BUG 19547: Apostrophe / single quotes in math \text{...}
    • next years
    • next year's
    • `next' year
  • BUG 6722: Spacing fix for functions in math HTML output:
    • sinx
    • sin(x)
    • sinx
    • sinx
    • sin(x)
    • sinx
  • BUG 18912: Add \sen function for Spanish sin to math
    • senx
    • senx)
    • senx
    • senx
    • senx)
    • senx
  • BUG 18912: \operatorname{sen} x gets wrong spacing in math: sen
  • BUG 31442: Multiple math accents without braces fails to parse: B˙
  • BUG 31442: Math accents with math font fail to parse if braces not used:~
  • BUG 31824: Empty math tag returns uniq:
  • BUG 31824: Empty math tag returns uniq:

Additional tests

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(abcd) Å

ADD your test cases here please.

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Custom Test Cases