LaTeX Syntax Quick Reference

Every time you need it, it's always a hassle to find, so we decided to write a LaTeX syntax quick reference table.

Category	Description	Syntax	Display
Text Styles	Bold	`\textbf{AB}`	$\textbf{AB}$
	Italic	`\textit{AB}`	$\textit{AB}$
	Underline	`\underline{AB}`	$\underline{AB}$
	Overline	`\overline{AB}`	$\overline{AB}$
	Typewriter Font	`\texttt{AB}`	$\texttt{AB}$
Math Structures	Fraction	`\frac{A}{B}`	$\frac{A}{B}$
	Fraction (Display)	`\dfrac{a}{b}`	$\dfrac{a}{b}$
	Fraction (Inline)	`\tfrac{a}{b}`	$\tfrac{a}{b}$
	Old-Style Fraction	`{A \over B}`	$\frac{A}{B}$
	Binomial Coeff.	`\binom{n}{k}`	$\binom{n}{k}$
	Old-Style Binomial	`{n \choose k}`	$\binom{n}{k}$
	Square Root	`\sqrt{x}`	$\sqrt{x}$
	n-th Root	`\sqrt[n]{x}`	$\sqrt[n]{x}$
	Exponent	`a^b`	$a^b$
	Subscript	`a_b`	$a_b$
	Integral	`\int_a^b x^2 \mathrm{d} x`	$\int_a^b x^2 \mathrm{d} x$
	Summation	`\sum_{n=1}^\infty \frac{1}{n}`	$\sum_{n=1}^\infty \frac{1}{n}$
	Limit	`\lim_{x \to \infty} \frac{1}{x}`	$\lim_{x \to \infty} \frac{1}{x}$
	Product	`\prod_{i=1}^n i`	$\prod_{i=1}^n i$
Math Symbols	Sine	`\sin{\theta}`	$\sin{\theta}$
	Cosine	`\cos{\theta}`	$\cos{\theta}$
	Plus-Minus	`\pm`	$\pm$
	Multiplication	`\times`	$\times$
	Division	`\div`	$\div$
	Subset Equal	`\subseteq`	$\subseteq$
	Superset Equal	`\supseteq`	$\supseteq`
	Implies	`\implies`	$\implies$
	Implied By	`\impliedby`	$\impliedby$
	If and Only If	`\iff`	$\iff$
	Intersection	`\cap`	$\cap$
	Union	`\cup`	$\cup$
	Logical And	`\land`	$\land$
	Logical Or	`\lor`	$\lor$
	Logical Not	`\neg`	$\neg$
	Not Equal To	`\neq`	$\neq$
	Approximately Equal	`\approx`	$\approx$
Greek Letters	Lowercase α	`\alpha`	$\alpha$
	Uppercase Α	`\Alpha`	$\Alpha$
	Lowercase β	`\beta`	$\beta$
	Uppercase Β	`\Beta`	$\Beta$
	Lowercase γ	`\gamma`	$\gamma$
	Uppercase Γ	`\Gamma`	$\Gamma$
	Lowercase δ	`\delta`	$\delta$
	Uppercase Δ	`\Delta`	$\Delta$
	Lowercase ε	`\epsilon`	$\epsilon$
	Uppercase Ε	`\Epsilon`	$\Epsilon$
	Variant Lowercase φ	`\varphi`	$\varphi$
	Uppercase Φ	`\Phi`	$\Phi$
	Lowercase χ	`\chi`	$\chi$
	Uppercase Χ	`\Chi`	$\Chi$
	Lowercase μ	`\mu`	$\mu$
	Uppercase Μ	`\Mu`	$\Mu$
	Lowercase ω	`\omega`	$\omega$
	Uppercase Ω	`\Omega`	$\Omega$
Matrices & Vectors	Matrix (with brackets)	`\begin{pmatrix} a & b \\ c & d \end{pmatrix}`	$\begin{pmatrix} a & b\\ c & d \end{pmatrix}$
	Matrix (no brackets)	`\begin{matrix} x & y \\ z & w \end{matrix}`	$\begin{matrix} x & y \\ z & w \end{matrix}$
	Vector	`\vec{v}`	$\vec{v}$
	Identity Matrix	`\mathbf{I}`	$\mathbf{I}$
	Zero Matrix	`\mathbf{0}`	$\mathbf{0}$
Miscellaneous	Angle	`\angle`	$\angle$
	Triangle	`\triangle`	$\triangle$
	Square	`\square`	$\square$
	Space	`\quad`	$\quad$
	Proportional To	`\propto`	$\propto$
	Because	`\because`	$\because$
	Therefore	`\therefore`	$\therefore$
	Integer Set	`\mathbb{Z}`	$\mathbb{Z}$
	Probability Set	`\mathbb{P}`	$\mathbb{P}$
	Real Number Set	`\mathbb{R}`	$\mathbb{R}$
	Complex Number Set	`\mathbb{C}`	$\mathbb{C}$
	Imaginary Part	`\Im`	$\Im$
	Real Part	`\Re`	$\Re`
	Empty Set	`\emptyset`	$\emptyset$
	Fancy Empty Set	`\varnothing`	$\varnothing$
	Element Of	`\in`	$\in$
	Not Element Of	`\not\in`	$\not\in$
	Counterclockwise Arrow	`\circlearrowleft`	$\circlearrowleft$
	Clockwise Arrow	`\circlearrowright`	$\circlearrowright$
	Planck's Constant	`\hbar`	$\hbar$
	Natural Log	`\ln`	$\ln$
	Constant $\pi$	`\pi`	$\pi$
Formatting	Function Color	`f(x) = a{\color{red}{x}} + b`	$f(x) = a{\color{red}{x}} + b$
	Color Box	`\colorbox{#eeeeee}{Color Box}`	$\colorbox{#eeeeee}{Color Box}$
	Calligraphic Font	`{\cal ABCDE12345abced}`	${\cal ABCDE12345abced}$
	Framed Text	`\fbox{boxed text}`	$\fbox{boxed text}$
	Boxed Display Style Text	`\boxed{boxed\ text}`	$\boxed{boxed\ text}$
	Fraktur Font	`{\frak ABCDE12345abcde}`	${\frak ABCDE12345abcde}$
	Italic Font	`{\it abefg12345}\ abcdefg12345`	${\it abefg12345}\ abcdefg12345$
	Minimum	`\min\limits_{n}`	$\min\limits_{n}$
	Bold Greek Letter	`\boldsymbol{\alpha}`	$\boldsymbol{\alpha}$