$\hbar$
$\imath$
$\jmath$
$\ell$
$\Re$
$\Im$
$\emptyset$
$\infty$
$\partial$
$\nabla$
$\triangle$
$\forall$
$\exists$
$\nexists$
$\top$
$\bot$
$\sum$
$\prod$
$\int$
$\oint$
$\bigcap$
$\bigcup$
$\biguplus$
$\bigoplus$
$\bigotimes$
$\bigodot$
$\mathbf{R}$
$\mathcal{R}$
$\mathbb{R}$
$\mathrm{R}$
$^{sup}$
$\widetilde{abc}$
$\underbrace{abc}$
$\widehat{abc}$
$\underline{abc}$
$\overrightarrow{abc}$
$\sqrt{abc}$
$\sqrt[n]{abc}$
$\overline{abc}$
$\overbrace{abc}$
$\frac{abc}{xyz}$
$_{sub}$
$\hat{a}$
$\check{a}$
$\breve{a}$
$\acute{a}$
$\grave{a}$
$\tilde{a}$
$\bar{a}$
$\vec{a}$
$\dot{a}$
$\ddot{a}$
$a^{\prime}$
$\alpha$
$\beta$
$\gamma$
$\delta$
$\epsilon$
$\varepsilon$
$\zeta$
$\eta$
$\theta$
$\vartheta$
$\iota$
$\kappa$
$\lambda$
$\mu$
$\nu$
$\xi$
$o$
$\pi$
$\varpi$
$\rho$
$\varrho$
$\sigma$
$\varsigma$
$\tau$
$\upsilon$
$\phi$
$\varphi$
$\chi$
$\psi$
$\omega$
$\Gamma$
$\Delta$
$\Theta$
$\Lambda$
$\Xi$
$\Pi$
$\Sigma$
$\Upsilon$
$\Phi$
$\Psi$
$\Omega$
$\{$
$\big\{$
$\Big\{$
$\bigg\{$
$\Bigg\{$
$\}$
$\left[\right]$
$|$
$\|$
$\cdots$
$\subset$
$\supset$
$\subseteq$
$\supseteq$
$\in$
$\ni$
$\sim$
$\simeq$
$\approx$
$\cong$
$\vdots$
$\propto$
$\pm$
$\mp$
$\times$
$\div$
$\ast$
$\star$
$\circ$
$\bullet$
$\cdot$
$\ddots$
$\cap$
$\cup$
$\uplus$
$\bigtriangleup$
$\bigtriangledown$
$\oplus$
$\otimes$
$\odot$
$\neq$
$\dagger$
$\ngeqslant$
$\leqslant$
$\geqslant$
$\ll$
$\gg$
$\lll$
$\ggg$
$\lesssim$
$\gtrsim$
$\nless$
$\ngtr$
$\nleqslant$
$\cos$
$\sin$
$\tan$
$\cosh$
$\sinh$
$\tanh$
$\inf$
$\sup$
$\cot$
$\min$
$\max$
$\coth$
$\exp$
$\ln$
$\log$
$\arg$
$\ker$
$\sec$
$\gcd$
$\dim$
$\det$
$\hom$
$\csc$
$\lg$
$\arccos$
$\arcsin$
$\arctan$
$\lim$
$\liminf$
$\limsup$
$\begin{aligned}
\dot{x} & = \sigma(y-x) \\
\dot{y} & = \rho x - y - xz \\
\dot{z} & = -\beta z + xy
\end{aligned}$
$\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$
$\mathbf{V}_1 \times \mathbf{V}_2 = \begin{vmatrix}
\mathbf{i} & \mathbf{j} & \mathbf{k} \\
\frac{\partial X}{\partial u} & \frac{\partial Y}{\partial u} & 0 \\
\frac{\partial X}{\partial v} & \frac{\partial Y}{\partial v} & 0
\end{vmatrix}$
$\frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} =
1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}}
{1+\frac{e^{-8\pi}} {1+\ldots} } } }$
$1 + \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots =
\prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})},
\quad\quad \text{for $|q|<1$}.$
$\begin{aligned}
\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} & = \frac{4\pi}{c}\vec{\mathbf{j}} \\ \nabla \cdot \vec{\mathbf{E}} & = 4 \pi \rho \\
\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} & = \vec{\mathbf{0}} \\
\nabla \cdot \vec{\mathbf{B}} & = 0 \end{aligned}$
$$