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jkqtmathtext_cbrt.png
$\cbrt{1+\cbrt{1+\cbrt{1+\cbrt{1+\cbrt{1+x}}}}}\ \ \ \ \ \sqrt[3.1415]{x^2+\pi y^2}$
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jkqtmathtext_sqrt.png
$\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+\sqrt{1+x}}}}}$
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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{matrix}text: & abc123+d/e\\ math: & $abc123+d/e$\end{matrix}
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jkqtmathtext_mathoperator_width_factor.png
--showboxes
\begin{matrix}Math: $a=b$ & text: a=b\\\textcolor{blue}{extra space}&\textcolor{blue}{normal spacing}\end{matrix}
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jkqtmathtext_limits.png
no specifier: $\sum_{i=0}^\infty k_i^2\ \ \lim_{x\rightarrow0}f(x)\ \ \nabla_{x}f(x)$ \ \ \ \ \ {\backslash}limits: $\sum\limits_{i=0}^\infty k_i^2\ \ \lim\limits_{x\rightarrow0}f(x)\ \ \nabla\limits_{x}f(x)$ \ \ \ \ \ {\backslash}nolimits: $\sum\nolimits_{i=0}^\infty k_i^2\ \ \lim\nolimits_{x\rightarrow0}f(x)\ \ \nabla\nolimits_{x}f(x)$ 
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jkqtmathtext_doc_subsupershift_integral.png
--fontsize=30
sub-/superscript:\\
\begin{tabular}{c:c|c:c}
shifted  & subs. shifted & unshifted & unshifted\\\hdashline
$\int\limits_{\textcolor{blue}{\leftarrow}}^{\textcolor{blue}{\rightarrow}}$ & $\int\nolimits_{\textcolor{blue}{\leftarrow}}^{\textcolor{red}{^0}}$ & $\sum\limits_\textcolor{red}{0}^\textcolor{red}{0}$ & $\sum\nolimits_\textcolor{red}{0}^\textcolor{red}{0}$
\end{tabular}
---
jkqtmathtext_doc_subsupershift_integral_boxes.png
--drawboxes --fontsize=30
sub-/superscript:\\
\begin{tabular}{c:c|c:c}
shifted  & subs. shifted & unshifted & unshifted\\\hdashline
$\int\limits_{\textcolor{blue}{\leftarrow}}^{\textcolor{blue}{\rightarrow}}$ & $\int\nolimits_{\textcolor{blue}{\leftarrow}}^{\textcolor{red}{^0}}$ & $\sum\limits_\textcolor{red}{0}^\textcolor{red}{0}$ & $\sum\nolimits_\textcolor{red}{0}^\textcolor{red}{0}$
\end{tabular}
---
jkqtmathtext_doc_subsuper_italiccorrection.png
--fontsize=30
sub-/superscript:\\
\begin{tabular}{c|c}
italic-correction  &  no correction\\\hdashline
$x_\textcolor{blue}{\leftarrow}^\textcolor{red}{0}$ & $\mathrm{M}_\textcolor{red}{0}^\textcolor{red}{0}$
\end{tabular}
---
jkqtmathtext_doc_subsuper_italiccorrection_boxes.png
--drawboxes --fontsize=30
sub-/superscript:\\
\begin{tabular}{c|c}
italic-correction  &  no correction\\\hdashline
$x_\textcolor{blue}{\leftarrow}^\textcolor{red}{0}$ & $\mathrm{M}_\textcolor{red}{0}^\textcolor{red}{0}$
\end{tabular}