Greek alphabet
\alpha A£[\alpha A£]
\nu N£[\nu N£]
\beta B£[\beta B£]
\xi\Xi£[\xi\Xi£]
\gamma \Gamma£[\gamma \Gamma£]
o O£[o O£]
\delta \Delta£[\delta \Delta£]
\pi \Pi£[\pi \Pi£]
\epsilon \varepsilon E£[\epsilon \varepsilon E£]
\rho\varrho P£[\rho\varrho P£]
\zeta Z£[\zeta Z£]
\sigma \Sigma£[\sigma \Sigma£]
\eta H£[\eta H£]
\tau T£[\tau T£]
\theta \vartheta \Theta£[\theta \vartheta \Theta£]
\upsilon \Upsilon£[\upsilon \Upsilon£]
\iota I£[\iota I£]
\phi \varphi \Phi£[\phi \varphi \Phi£]
\kappa K£[\kappa K£]
\chi X£[\chi X£]
\lambda \Lambda£[\lambda \Lambda£]
\psi \Psi£[\psi \Psi£]
\mu M£[\mu M£]
\omega \Omega£[\omega \Omega£]

Hebrew alphabet
\aleph£[\aleph£]
\beth£[\beth£]
\gimel£[\gimel£]
\daleth£[\daleth£]

Other letters
\mathbb{ABC…Zabc…z}blackboard bold letters, no lowercase
£[\mathbb{ABC…Zabc…z}£]
\mathcal{ABC…Zabc…z}calligraphic letters letters, no lowercase
£[\mathcal{ABC…Zabc…z}£]
\mathfrak{ABC…Zabc…z}fraktur letters
£[\mathfrak{ABC…Zabc…z}£]
\mathrm{ABC…Zabc…z}roman letters
£[\mathrm{ABC…Zabc…z}£]

Arrows
\leftarrow£[\leftarrow£]
\Leftarrow£[\Leftarrow£]
\rightarrow£[\rightarrow£]
\Rightarrow£[\Rightarrow£]
\leftrightarrow£[\leftrightarrow£]
\rightleftharpoons£[\rightleftharpoons£]
\uparrow£[\uparrow£]
\downarrow£[\downarrow£]
\Uparrow£[\Uparrow£]
\Downarrow£[\Downarrow£]
\Leftrightarrow£[\Leftrightarrow£]
\Updownarrow£[\Updownarrow£]
\mapsto£[\mapsto£]
\longmapsto£[\longmapsto£]
\nearrow£[\nearrow£]
\searrow£[\searrow£]
\swarrow£[\swarrow£]
\nwarrow£[\nwarrow£]
\leftharpoonup£[\leftharpoonup£]
\rightharpoonup£[\rightharpoonup£]
\leftharpoondown£[\leftharpoondown£]
\rightharpoondown£[\rightharpoondown£]

Dots
\ldotshorizontal dots on the line
£[\ldots£]
\cdotshorizontal dots above the line
£[\cdots£]
\vdotsvertical dots
£[\vdots£]
\ddotsdiagonal dots
£[\ddots£]

\infty£[\infty£]
\forall£[\forall£]
\Re£[\Re£]
\Im£[\Im£]
\nabla£[\nabla£]
\exists£[\exists£]
\partial£[\partial£]
\nexists£[\nexists£]
\emptyset£[\emptyset£]
\varnothing£[\varnothing£]
\wp£[\wp£]
\complement£[\complement£]
\neg£[\neg£]
\square£[\square£]
\surd£[\surd£]
\blacksquare£[\blacksquare£]
\triangle£[\triangle£]
\cdot£[\cdot£]
\times£[\times£]
\div£[\div£]
\cap£[\cap£]
\cup£[\cup£]
\neq£[\neq£]
\leq£[\leq£]
\geq£[\geq£]
\in£[\in£]
\perp£[\perp£]
\notin£[\notin£]
\subset£[\subset£]
\simeq£[\simeq£]
\approx£[\approx£]
\wedge£[\wedge£]
\vee£[\vee£]
\oplus£[\oplus£]
\otimes£[\otimes£]
\Box£[\Box£]
\boxtimes£[\boxtimes£]
\equiv£[\equiv£]
\cong£[\cong£]

x\mathbin{=}xspacing of a binary operator
£[x\mathbin{=}x£]
x\mathrel{=}xspacing of a binary relation
£[x\mathrel{=}x£]
a\stackrel{top}{binrel}b\stackrel{R}{=}csymbol over an operator
£[a\stackrel{top}{binrel}b\stackrel{R}{=}c£]
real^{real}={non\mbox{-}real}dash
£[real^{real}={non\mbox{-}real}£]
\inftyinfinity
£[\infty£]
\left(-\frac{1}{2}\right)parentheses
£[\left(-\frac{1}{2}\right)£]
\{\frac{1}{2}\}curly braces
£[\{\frac{1}{2}\}£]
a_{n+1}=a_n+a_{n-1}subscript
£[a_{n+1}=a_n+a_{n-1}£]
x^ypower
£[x^y£]
e^{iπ}=-1power
£[e^{iπ}=-1£]
\frac{a}{b}fraction
£[\frac{a}{b}£]
\lceil{x}\rceilceil
£[\lceil{x}\rceil£]
\lfloor{x}\rfloorfloor
£[\lfloor{x}\rfloor£]
\sqrt{2}square root
£[\sqrt{2}£]
\sqrt[3]{7+\sqrt{50}}+\sqrt[3]{7-\sqrt{50}}cube root
£[\sqrt[3]{7+\sqrt{50}}+\sqrt[3]{7-\sqrt{50}}£]
\sum_{i=1}^{i=∞}i^isum
£[\sum_{i=1}^{i=∞}i^i£]
\sum\limits_{i=1}^{i=∞}i^i(better displayed) sum
£[\sum\limits_{i=1}^{i=∞}i^i£]
\prod_{i=1}^{i=n}i^iproduct
£[\prod_{i=1}^{i=n}i^i£]
\prod\limits_{i=1}^{i=n}i^i(better displayed) product
£[\prod\limits_{i=1}^{i=n}i^i£]
\int_{a}^{b} x^2 dxintegral
£[\int_{a}^{b} x^2 dx£]
\int\limits_{a}^{b} x^2 dx(better displayed) integral
£[\int\limits_{a}^{b} x^2 dx£]
\iint_V \mu(u,v) \,du\,dvdouble integral
£[\iint_V \mu(u,v) \,du\,dv£]
\iint\limits_V \mu(u,v) \,du\,dv(better displayed) double integral
£[\iint\limits_V \mu(u,v) \,du\,dv£]
\iiint_V \mu(u,v,w) \,du\,dv\,dwtriple integral
£[\iiint_V \mu(u,v,w) \,du\,dv\,dw£]
\iiiint_V \mu(t,u,v,w) \,dt\,du\,dv\,dwquadruple integral
£[\iiiint_V \mu(t,u,v,w) \,dt\,du\,dv\,dw£]
\idotsint_V \mu(u_1,\dots,u_k) \,du_1 \dots du_kmultiple integral
£[idotsint_V \mu(u_1,\dots,u_k) \,du_1 \dots du_k£]
\oint_V f(s) \,dscyclic integral
£[\oint_V f(s) \,ds£]
\lim_{x\to\infty} f(x)limit
£[\lim_{x\to\infty} f(x)£]
\left\{\begin{array}{@{}l@{}}
\sqrt{x}+y=7\\
x+\sqrt{y}=11
\end{array}\right.
system of equations
£[\left\{\begin{array}{@{}l@{}}\sqrt{x}+y=7\\x+\sqrt{y}=11\end{array}\right.£]

Matrices
\begin{matrix}
    a_{11} & a_{12}\\
    a_{21} & a_{22}
\end{matrix}
matrix without brackets
£[\begin{matrix} a_{11} & a_{12}\\ a_{21} & a_{22} \end{matrix}£]
\begin{pmatrix}
    a_{11} & a_{12}\\
    a_{21} & a_{22}
\end{pmatrix}
matrix with parenthesis
£[\begin{pmatrix} a_{11} & a_{12}\\ a_{21} & a_{22} \end{pmatrix}£]
\begin{bmatrix}
    a_{11} & a_{12}\\
    a_{21} & a_{22}
\end{bmatrix}
matrix with square brackets
£[\begin{bmatrix} a_{11} & a_{12}\\ a_{21} & a_{22} \end{bmatrix}£]
\begin{Bmatrix}
    a_{11} & a_{12}\\
    a_{21} & a_{22}
\end{Bmatrix}
matrix with curly brackets
£[\begin{Bmatrix} a_{11} & a_{12}\\ a_{21} & a_{22} \end{Bmatrix}£]
\begin{vmatrix}
    a_{11} & a_{12}\\
    a_{21} & a_{22}
\end{vmatrix}
matrix with vertical bars
£[\begin{vmatrix} a_{11} & a_{12}\\ a_{21} & a_{22} \end{vmatrix}£]
\begin{Vmatrix}
    a_{11} & a_{12}\\
    a_{21} & a_{22}
\end{Vmatrix}
matrix with double vertical bars
£[\begin{Vmatrix} a_{11} & a_{12}\\ a_{21} & a_{22} \end{Vmatrix}£]
\begin{bmatrix}
    a_{1,1} & a_{1,2} & \cdots & a_{1,m} \\
    a_{2,1} & a_{2,2} & \cdots & a_{2,m} \\
    \vdots & \vdots & \ddots & \vdots \\
    a_{m,1} & a_{m,2} & \cdots & a_{m,m}
\end{bmatrix}
matrix with double vertical bars
£[\begin{bmatrix}a_{1,1} & a_{1,2} & \cdots & a_{1,m} \\a_{2,1} & a_{2,2} & \cdots & a_{2,m} \\\vdots & \vdots & \ddots & \vdots \\a_{m,1} & a_{m,2} & \cdots & a_{m,m}\end{bmatrix}£]
\begin{bmatrix}
    a_{1} & & \\
    & \ddots & \\
    & & a_{n}
\end{bmatrix}
matrix with double vertical bars
£[\begin{bmatrix}a_{1} & & \\& \ddots & \\& & a_{n}\end{bmatrix}£]