Extension:Math/Torture Test

A copy on Beta https://en.wikipedia.beta.wmflabs.org/wiki/Extension:Math/Torture_Test

Recreating the MathML torture test old version 20+ years old, new version from 2021 that allows different font's to be used.

Rendering of TortureTest

Number	LaTex	MathML	Notes
1	x^2y^2	$x^2{y}^2$ $x^{2}y^{2}$
2	{ }_2F_3	${}_2{F}_3$ ${}_{2}F_{3}$
3	\frac{x+y^2}{k+1}	$\frac{x+y^2}{k+1}$ ${\frac {x+y^{2}}{k+1}}$
3b	{x+y^2 \over k + 1}	$\frac{x+y^2}{k+1}$ ${x+y^{2} \over k+1}$
4	x + y^{\frac{2}{k+1} }	$x+y^{\frac{2}{k+1}}$ $x+y^{\frac {2}{k+1}}$
5	\frac{a}{b/2}	$\frac{a}{b/2}$ ${\frac {a}{b/2}}$	task T375337
6	a_0 + \frac{1}{\displaystyle a_1 + \frac{1}{\displaystyle a_2 + \frac{1}{\displaystyle a_3 + \frac{1}{a_4} } } }	$a_0+\frac{1}{a_1+\frac{1}{a_2+\frac{1}{a_3+\frac{1}{a_4}}}}$ $a_{0}+{\frac {1}{\displaystyle a_{1}+{\frac {1}{\displaystyle a_{2}+{\frac {1}{\displaystyle a_{3}+{\frac {1}{a_{4}}}}}}}}}$
7	a_0 + \tfrac{1}{a_1+\tfrac{1}{a_2+\tfrac{1}{a_3+\tfrac{1}{4} } } }	$a_0+\frac{1}{a_1+\frac{1}{a_2+\frac{1}{a_3+\frac{1}{4}}}}$ $a_{0}+{\tfrac {1}{a_{1}+{\tfrac {1}{a_{2}+{\tfrac {1}{a_{3}+{\tfrac {1}{4}}}}}}}}$
8	\binom{n}{k/2}	$(\genfrac{}{}{0ex}{}{n}{k/2})$ ${\binom {n}{k/2}}$
9	\binom{p}{2}x^2y^{p-2}-\frac{1}{1-x}\frac{1}{1-x^2}	$(\genfrac{}{}{0ex}{}{p}{2})x^2{y}^{p-2}-\frac{1}{1-x}\frac{1}{1-x^2}$ ${\binom {p}{2}}x^{2}y^{p-2}-{\frac {1}{1-x}}{\frac {1}{1-x^{2}}}$
10a	\sum_\substack{0 \le i \le m \\ 0 < j < n} P(i,j) }}		Not currently supported task T318784. See [1]
10b	\sum_{{}^{0 \le i \le m}_{0 < j < n}} P(i,j)	$\sum _{{}_{0<j<n}^{0\le i\le m}}P(i,j)$ $\sum _{{}_{0<j<n}^{0\leq i\leq m}}P(i,j)$
11	x^{2y}	$x^{2y}$ $x^{2y}$
12	x^2	$x^2$ $x^{2}$
13	\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+x} } } } } } }	$\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+x}}}}}}}$ ${\sqrt {1+{\sqrt {1+{\sqrt {1+{\sqrt {1+{\sqrt {1+{\sqrt {1+{\sqrt {1+x}}}}}}}}}}}}}}$
14	\left( \frac{\partial}{\partial x^2}+\frac{\partial}{\partial x^2} \right) \left|\varphi(x+i y)\right|^2 = 0	$(\frac{\partial }{\partial x^2}+\frac{\partial }{\partial x^2}){|\phi (x+iy)|}^2=0$ $\left({\frac {\partial }{\partial x^{2}}}+{\frac {\partial }{\partial x^{2}}}\right)\left|\varphi (x+iy)\right|^{2}=0$
15	2^{2^{2^x} }	$2^{2^{2^x}}$ $2^{2^{2^{x}}}$
16	\int_1^x \frac{dt}{t}	$\underset{1}{\overset{x}{\int }}\frac{dt}{t}$ $\int _{1}^{x}{\frac {dt}{t}}$
17	\iint_D dx dy	$\underset{D}{\iint }dxdy$ $\iint _{D}dxdy$
18	f(x) = \begin{cases} 1/3 & \text{if } 0 \le x \le 1 \\ 2/3 & \text{if } 3 \le x \le 4 \\ 0 & \text{elsewhere} \end{cases}	$f(x)=\{\begin{array}{ll}1/3& \text{if }0\le x\le 1\\ 2/3& \text{if }3\le x\le 4\\ 0& \text{elsewhere}\end{array}$ $f(x)={\begin{cases}1/3&{\text{if }}0\leq x\leq 1\\2/3&{\text{if }}3\leq x\leq 4\\0&{\text{elsewhere}}\end{cases}}$
19	\overbrace{ x+\cdots+x }^{k\text{ times} }	$\stackrel{k\text{ times}}{\overbrace{x+\cdots +x}}$ $\overbrace {x+\cdots +x} ^{k{\text{ times}}}$
20	y_{x^2}	$y_{x^2}$ $y_{x^{2}}$
21	\sum_{p\text{ prime} } f(p) = \int_{t>1} f(t) d\pi(t)	$\sum _{p\text{ prime}}f(p)=\underset{t>1}{\int }f(t)d\pi (t)$ $\sum _{p{\text{ prime}}}f(p)=\int _{t>1}f(t)d\pi (t)$
22	\underbrace{ \overbrace{a,\ldots,a}^{k\,a\text{'s} }, \overbrace{b,\ldots,b}^{l\ b\text{'s} } }_{k+l\text{ elements} }	$$\begin{gathered} \underset{k+l\text{ elements}}{\underbrace{\stackrel{ka\text{'s}}{\overbrace{a,\dots ,a}},\stackrel{l \\ b\text{'s}}{\overbrace{b,\dots ,b}}}} \end{gathered}$$ $\underbrace {\overbrace {a,\ldots ,a} ^{k\,a{\text{'s}}},\overbrace {b,\ldots ,b} ^{l\ b{\text{'s}}}} _{k+l{\text{ elements}}}$
23	\begin{pmatrix} \begin{pmatrix}a&b\\c&d\end{pmatrix} & \begin{pmatrix}e&f\\g&h\end{pmatrix} \\ 0 & \begin{pmatrix}i&j\\k&l\end{pmatrix} \end{pmatrix}	$\left(\begin{array}{cc}\left(\begin{array}{cc}a& b\\ c& d\end{array}\right)& \left(\begin{array}{cc}e& f\\ g& h\end{array}\right)\\ 0& \left(\begin{array}{cc}i& j\\ k& l\end{array}\right)\end{array}\right)$ ${\begin{pmatrix}{\begin{pmatrix}a&b\\c&d\end{pmatrix}}&{\begin{pmatrix}e&f\\g&h\end{pmatrix}}\\0&{\begin{pmatrix}i&j\\k&l\end{pmatrix}}\end{pmatrix}}$	task T375346 Lots of space around the cells in matrix evironments in MathML mode
24	\det\begin{vmatrix} c_0 & c_1 & c_2 & \ldots & c_n \\ c_1 & c_2 & c_3 & \ldots & c_{n+1} \\ c_2 & c_3 & c_4 & \ldots & c_{n+2} \\ \vdots & \vdots & \vdots & & \vdots \\ c_n & c_{n+1} & c_{n+2} & \ldots & c_{2n} \end{vmatrix}>0	$\det \left|\begin{array}{ccccc}{c}_0& c_1& c_2& \dots & c_n\\ c_1& c_2& c_3& \dots & c_{n+1}\\ c_2& c_3& c_4& \dots & c_{n+2}\\ ⋮& ⋮& ⋮& & ⋮\\ c_n& c_{n+1}& c_{n+2}& \dots & c_{2n}\end{array}\right|>0$ $\det {\begin{vmatrix}c_{0}&c_{1}&c_{2}&\ldots &c_{n}\\c_{1}&c_{2}&c_{3}&\ldots &c_{n+1}\\c_{2}&c_{3}&c_{4}&\ldots &c_{n+2}\\\vdots &\vdots &\vdots &&\vdots \\c_{n}&c_{n+1}&c_{n+2}&\ldots &c_{2n}\end{vmatrix}}>0$
25	y_{x_2}	$y_{x_2}$ $y_{x_{2}}$
26	x^{31415}_{92}	$x_{92}^{31415}$ $x_{92}^{31415}$
27	x^{z^d_c}_{y^a_b}	$x_{y_b^a}^{z_c^d}$ $x_{y_{b}^{a}}^{z_{c}^{d}}$
28	y^{\prime\prime\prime}_3	$y_3^{\prime \prime \prime }$ $y_{3}^{\prime \prime \prime }$