Most commonly used symbols and expressions

Input Output
\geq ≥\geq
\leq ≤\leq
2^x 2x2^x
2^{2x} 22x2^{2x}
F_x FxF_x
F_{2x} F2xF_{2x}
O(n) O(n)O(n)
O(n^2) O(n2)O(n^2)
O(log \space n) O(log n)O(log \space n)
O(n^{2x}) O(n2x)O(n^{2x})
O(n \space log n) O(n logn)O(n \space log n)
O(log_2 \space n) O(log2 n)O(log_2 \space n)
O(log_{2x} \space n) O(log2x n)O(log_{2x} \space n)
x \times y x×yx \times y
x \div y x÷yx \div y
\frac{x}{y} xy\frac{x}{y}
\sqrt[n]{x} xn\sqrt[n]{x}
\sum_{k=1}^n ∑k=1n\sum_{k=1}^n
\prod_{k=1}^n ∏k=1n\prod_{k=1}^n
\omega ω\omega
\Omega Ω\Omega
\theta θ\theta
\Theta Θ\Theta
& &\&
$ $\$
% %\%
\infty ∞\infty
\approx ≈\approx
  Non-breaking space within Markdown

Operators

Input Output
\cos cos⁡\cos
\sin sin⁡\sin
\lim lim⁡\lim
\exp exp⁡\exp
\to →\to
\infty ∞\infty
\times ×\times
\equiv ≡\equiv

Greek letters

Input Output
\alpha α\alpha
\beta β\beta
\gamma γ\gamma
\pi π\pi
\phi ϕ\phi
\varphi φ\varphi

Fractions and binomials

Input Output
\frac{m!}{n!(m-n)!} m!n!(m−n)!\frac{m!}{n!(m-n)!}
\binom{m}{k} (mk)\binom{m}{k}
\frac{\frac{m}{3}}{m-n} m1m−n\frac{\frac{m}{1}}{m-n}
^5/_8 5/8^5/_8

Power and indices

Input Output
m_{n+1} mn+1m_{n+1}
m^2 m2m^2
m_n^2 mn2m_n^2

Square root

Input Output
\sqrt{2} 2\sqrt{2}
\sqrt[3]{2} 23\sqrt[3]{2}

Brackets

Input Output
(m) (m)(m)
[a] [a][a]
\langle f \rangle ⟨f⟩\langle f \rangle
\ulcorner f \urcorner ⌜f⌝\ulcorner f \urcorner

Ceil and floor

Input Output
\lceil x \rceil ⌈x⌉\lceil x \rceil
\lfloor x \rfloor ⌊x⌋\lfloor x \rfloor
\lfloor \frac{x-1}{2} \rfloor ⌊x−12⌋\lfloor \frac{x-1}{2} \rfloor

Sums and integrals

Input Output
m’$ $m^{\prime} m′m' m′m^{\prime}
m’’ m′′m''
\hat{m} m^\hat{m}
\bar{m} mˉ\bar{m}
\grave{m} mˋ\grave{m}
\acute{m} mˊ\acute{m}
\dot{m} m˙\dot{m}
\ddot{m} m¨\ddot{m}
\overline{mmm} mmm‾\overline{mmm}
\check{m} mˇ\check{m}
\vec{m} m⃗\vec{m}
\pm ±\pm
\mp ∓\mp
\int y \mathrm{m} ∫ym\int y \mathrm{m}