$$\alpha,\beta,\gamma,\Gamma,\delta,\Delta,\epsilon,\varepsilon,\zeta,\theta,\Theta,\vartheta,\iota,\kappa,\lambda,\Lambda,\sigma,\Sigma,\upsilon,\Upsilon,\omega,\Omega,\omega,\Omega,\xi,$$ $$x^{2},x^{3},x^{n+1},a_{n+2},x_{n},\sqrt{ x^2-2 },\sqrt[n]{ x }, \frac{x}{y}$$ $$e^{ x }, x ^{-1}, x ^{*},\mathrm{Re},\mathrm{Im},\mathbf{xyui},\mathrm{asd},\mathrm{Tr},\frac{\partial y}{\partial x}$$ $$\hat{x},\bar{x},\dot{x},\ddot{x},\tilde{x},\underline{x},\vec{x},x\cdot x,x_{n},x_{i},x_{j},x_{n+1},y_{n},y_{i},y_{j}$$ $$\infty,\sum,\prod,\lim_{ n \to \infty } ,\pm ,\mp ,\dots ,\nabla ,\nabla ,\times ,\cdot,\parallel $$ $$\equiv,\neq ,\geq ,\leq ,\gg,\ll,\sim,\simeq,\propto ,\approx$$ $$\leftrightarrow ,\Leftrightarrow,\to,\implies ,\impliedby,\cap,\cup,\in,\not\in,\supseteq,\subseteq,\emptyset,\exists $$ $$\frac{d}{dt} ,\int,\int_{0}^{1} , dx ,\oint,\iint,\iiint,\int_{0}^{\infty} , dx ,\int_{-\infty}^{\infty} , dx $$ $$\begin{vmatrix} x,y,z \\ 1,2,3 \\ a,b,c \end{vmatrix}$$