TeX	MathML	Marca-math
1		$$x^2{y}^2$$
2		$${}_{2}F_3$$
3		$$\frac{x+y^2}{k+1}$$
4		$$x+y^{\frac{2}{k+1}}$$
5		$$\frac{a}{b/2}$$
6		$$a_0+\frac{1}{{\displaystyle a_1+\frac{1}{{\displaystyle a_2+\frac{1}{{\displaystyle a_3+\frac{1}{{\displaystyle a_4}}}}}}}}$$
7		$a_0+\frac{1}{a_1+\frac{1}{a_2+\frac{1}{a_3+\frac{1}{a_4}}}}$
8		$$\left(\genfrac{}{}{0px}{}{n}{k/2}\right)$$
9		$$\left(\genfrac{}{}{0px}{}{p}{2}\right)x^2{y}^{p-2}-\frac{1}{1-x}\frac{1}{1-x^2}$$
10		$$\sum _{\genfrac{}{}{0px}{}{0\le i\le m}{0<j<n}}P(i,j)$$
11		$$x^{2y}$$
12		$$\sum _{i=1}^p\sum _{j=1}^q\sum _{k=1}^r{a}_{ij}{b}_{jk}{c}_{ki}$$
13		$$\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+x}}}}}}}$$
14		$$(\frac{{\partial }^2}{\partial x^2}+\frac{{\partial }^2}{\partial y^2}){|\phi (x+\mathrm{i}y)|}^2=0$$
15		$$2^{2^{2^x}}$$
16		$${\int }_1^x\frac{dt}{t}$$
17		$${\iint }_{D}dxdy$$
18		$$f(x)=\{\begin{array}{cc}\hfill 1/3\hfill & \text{if}0\le x\le 1;\hfill \\ \hfill 2/3\hfill & \hfill \text{if}3\le x\le 4;\hfill \\ \hfill 0\hfill & \text{elsewhere.}\hfill \end{array}$$
19		$$\stackrel{\stackrel{k\text{times}}{⏞}}{x+...+x}$$
20		$$y_{x^2}$$
21		$$\sum _{p\text{prime}}f(p)={\int }_{t>1}f(t)d\pi (t)$$
22		$$\{\underset{\underset{k+\ell \text{elements}}{⏟}}{\stackrel{\stackrel{ka\text{'s}}{⏞}}{\phantom{(}a,...,a},\stackrel{\stackrel{\ell b\text{'s}}{⏞}}{\phantom{(}b,...,b}}\}$$
23		$$\left(\begin{array}{cc}\hfill \left(\begin{array}{cc}\hfill a\hfill & \hfill b\hfill \\ \hfill c\hfill & \hfill d\hfill \end{array}\right)\hfill & \hfill \left(\begin{array}{cc}\hfill e\hfill & \hfill f\hfill \\ \hfill g\hfill & \hfill h\hfill \end{array}\right)\hfill \\ \hfill 0\hfill & \hfill \left(\begin{array}{cc}\hfill i\hfill & \hfill j\hfill \\ \hfill k\hfill & \hfill l\hfill \end{array}\right)\hfill \end{array}\right)$$
24		$$\det \left|\begin{array}{ccccc}\hfill c_0\hfill & \hfill c_1\hfill & \hfill c_2\hfill & \hfill \dots \hfill & \hfill c_n\hfill \\ \hfill c_1\hfill & \hfill c_2\hfill & \hfill c_3\hfill & \hfill \dots \hfill & \hfill c_{n+1}\hfill \\ \hfill c_2\hfill & \hfill c_3\hfill & \hfill c_4\hfill & \hfill \dots \hfill & \hfill c_{n+2}\hfill \\ \hfill ⋮\hfill & \hfill ⋮\hfill & \hfill ⋮\hfill & \hfill \hfill & \hfill ⋮\hfill \\ \hfill c_n\hfill & \hfill c_{n+1}\hfill & \hfill c_{n+2}\hfill & \hfill \dots \hfill & \hfill c_{2n}\hfill \end{array}\right|>0$$
25		$$y_{x_2}$$
26		$$x_{92}^{31415}+\pi$$
27		$$x_{y_b^a}^{z_c^d}$$
28		$$y_3^{‴}$$
29		$$\underset{n\to +\mathrm{\infty }}{lim}\frac{\sqrt{2\pi n}}{n!}{\left(\frac{n}{e}\right)}^n=1$$
30		$$det(A)=\sum _{\sigma ∊S_n}ϵ(\sigma )\prod _{i=1}^n{a}_{i,{\sigma }_i}$$