LaTeX Cheatsheet

Most commonly used symbols and expressions

Input	Output
\geq	$\geq$
\leq	$\leq$
2^x	$2^x$
2^{2x}	$2^{2x}$
F_x	$F_x$
F_{2x}	$F_{2x}$
O(n)	$O(n)$
O(n^2)	$O(n^2)$
O(log \space n)	$O(log \space n)$
O(n^{2x})	$O(n^{2x})$
O(n \space log n)	$O(n \space log n)$
O(log_2 \space n)	$O(log_2 \space n)$
O(log_{2x} \space n)	$O(log_{2x} \space n)$
x \times y	$x \times y$
x \div y	$x \div y$
\frac{x}{y}	$\frac{x}{y}$
\sqrt[n]{x}	$\sqrt[n]{x}$
\sum_{k=1}^n	$\sum_{k=1}^n$
\prod_{k=1}^n	$\prod_{k=1}^n$
\omega	$\omega$
\Omega	$\Omega$
\theta	$\theta$
\Theta	$\Theta$
&	$\&$
$	$\$$
%	$\%$
\infty	$\infty$
\approx	$\approx$
 	Non-breaking space within Markdown

Operators

Input	Output
\cos	$\cos$
\sin	$\sin$
\lim	$\lim$
\exp	$\exp$
\to	$\to$
\infty	$\infty$
\times	$\times$
\equiv	$\equiv$

Greek letters

Input	Output
\alpha	$\alpha$
\beta	$\beta$
\gamma	$\gamma$
\pi	$\pi$
\phi	$\phi$
\varphi	$\varphi$

Fractions and binomials

Input	Output
\frac{m!}{n!(m-n)!}	$\frac{m!}{n!(m-n)!}$
\binom{m}{k}	$\binom{m}{k}$
\frac{\frac{m}{3}}{m-n}	$\frac{\frac{m}{1}}{m-n}$
^5/_8	$^5/_8$

Power and indices

Input	Output
m_{n+1}	$m_{n+1}$
m^2	$m^2$
m_n^2	$m_n^2$

Square root

Input	Output
\sqrt{2}	$\sqrt{2}$
\sqrt[3]{2}	$\sqrt[3]{2}$

Brackets

Input	Output
(m)	$(m)$
[a]	$[a]$
\langle f \rangle	$\langle f \rangle$
\ulcorner f \urcorner	$\ulcorner f \urcorner$

Ceil and floor

Input	Output
\lceil x \rceil	$\lceil x \rceil$
\lfloor x \rfloor	$\lfloor x \rfloor$
\lfloor \frac{x-1}{2} \rfloor	$\lfloor \frac{x-1}{2} \rfloor$

Sums and integrals

Input	Output
m’$ $m^{\prime}	$m'$ $m^{\prime}$
m’’	$m''$
\hat{m}	$\hat{m}$
\bar{m}	$\bar{m}$
\grave{m}	$\grave{m}$
\acute{m}	$\acute{m}$
\dot{m}	$\dot{m}$
\ddot{m}	$\ddot{m}$
\overline{mmm}	$\overline{mmm}$
\check{m}	$\check{m}$
\vec{m}	$\vec{m}$
\pm	$\pm$
\mp	$\mp$
\int y \mathrm{m}	$\int y \mathrm{m}$