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jkqtmathtext_cbrt.png
$\cbrt{1+\cbrt{1+\cbrt{1+\cbrt{1+\cbrt{1+x}}$
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jkqtmathtext_sqrt.png
$\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+x}}\ \ \ \ \ \sqrt[3.1415]{x^2+\pi y^2}$
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jkqtmathtext_supersub.png
$r^{123}r^\frac{1}{2}\ \ \ \ \ r_{123}r_\frac{1}{2}\ \ \ \ \ a_\text{text}^2a_\text{text}^\frac{1}{2}a^\text{text}_\frac{1}{2}$
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jkqtmathtext_specialsubsuper.png
$\lim\limits_{x\rightarrow\infty}\sum\limits_{n=1}^\infty\prod\limits_{n=1}^\infty\bigvee\limits_{n=1}^\infty\bigcup\limits_{n=1}^\infty$
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jkqtmathtext_doc_quadraticeq.png
$x_{1/2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$
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jkqtmathtext_doc_quadraticeq_boxes.png
--showboxes
$x_{1/2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$
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jkqtmathtext_lsubstack.png
{\backslash}lsubstack: $\sum\limits_\lsubstack{0\leq i\leq10\\-5\leq j\leq1000}f_{i,j}$
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jkqtmathtext_rsubstack.png
{\backslash}rsubstack: $\sum\limits_\rsubstack{0\leq i\leq10\\-5\leq j\leq1000}f_{i,j}$
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jkqtmathtext_substack.png
{\backslash}substack: $\sum\limits_\substack{0\leq i\leq10\\-5\leq j\leq1000}f_{i,j}$
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jkqtmathtext_mathmode_and_textmode.png
\begin{array}text: & abc123+d/e\\ math: & $abc123+d/e$\end{array}
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jkqtmathtext_mathoperator_width_factor.png
--showboxes
\begin{array}Math: $a=b$ & text: a=b\\\textcolor{blue}{extra space}&\textcolor{blue}{normal spacing}\end{array}