11.5.1 Top new questions this week

11.5.1.1 How to Optimize a TikZ Animation of Quicksort?
11.5.1.2 Best practices: How to tag a tikzpicture (and other things)
11.5.1.3 Text fractions in Cambria have too much space around solidus
11.5.1.4 \NewDocumentCommand, \NewExpandableDocumentCommand versus \cs_new_protected:Npn, \cs_new:Npn, and \cs_new_eq:NN
11.5.1.5 How to execute multiple statements in \str_case_e
11.5.1.6 Left-aligning section numbers in the margin
11.5.1.7 How can one typeset an upright hash symbol?
11.5.1.1 How to Optimize a TikZ Animation of Quicksort?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=735598

While revisiting some old notes on algorithms, I came across a code snippet illustrating the sorting of a vector using quicksort. 
Ia^\200\231m dissatisfied with how the nodes are defined relative to each other,... 
[tikz-pgf] [tikz-positioning]
 
asked by Emanuele Nardi https://tex.stackexchange.com/landing/r/digest?cta=user&id=127473 Score of 12
answered by Qrrbrbirlbel https://tex.stackexchange.com/landing/r/digest?cta=user&id=16595 Score of 13
11.5.1.2 Best practices: How to tag a tikzpicture (and other things)

https://tex.stackexchange.com/landing/r/digest?cta=question&id=735484

According to the PDF tagging project, I can tag graphics included using \includegraphics via the alt key. What about graphics generated with TikZ? 
In general, what is the recommended approach to ... 
[tikz-pgf] [graphics] [tagpdf]
 
asked by Gaussler https://tex.stackexchange.com/landing/r/digest?cta=user&id=19809 Score of 11
answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2388 Score of 10
11.5.1.3 Text fractions in Cambria have too much space around solidus

https://tex.stackexchange.com/landing/r/digest?cta=question&id=735223

Text fractions look bad in Cambria for me. I haven't had this problem in other fonts that support them, and they look fine even in Cambria if I use bold, italics, or bold italics. 
Is there a way that ... 
[luatex] [fontspec] [fractions]
 
asked by dedded https://tex.stackexchange.com/landing/r/digest?cta=user&id=62287 Score of 8
answered by mickep https://tex.stackexchange.com/landing/r/digest?cta=user&id=52406 Score of 11
11.5.1.4 \NewDocumentCommand, \NewExpandableDocumentCommand versus \cs_new_protected:Npn, \cs_new:Npn, and \cs_new_eq:NN

https://tex.stackexchange.com/landing/r/digest?cta=question&id=735588

When should expl3 programmers define user-level document commands using \NewDocumentCommand,\NewExpandableDocumntCommand, and friends versus using \cs_new_protected:Npn \cs_new:Npn, or \cs_new_eq:NN? 
... 
[expl3]
 
asked by User23456234 https://tex.stackexchange.com/landing/r/digest?cta=user&id=278534 Score of 7
answered by Joseph Wright https://tex.stackexchange.com/landing/r/digest?cta=user&id=73 Score of 6
11.5.1.5 How to execute multiple statements in \str_case_e

https://tex.stackexchange.com/landing/r/digest?cta=question&id=735515

I observed that the line \setbeamercolor{itemize item}{fg=green} in 
\documentclass{beamer} 
\def\X{a} 
\ExplSyntaxOn 
\str_case_e:nnF{\X}{ 
{a}{ 
\setbeamercolor{structure}{fg=red} 
\... 
[beamer] [expl3]
 
asked by Bubaya https://tex.stackexchange.com/landing/r/digest?cta=user&id=27717 Score of 7
answered by samcarter_is_at_topanswers.xyz https://tex.stackexchange.com/landing/r/digest?cta=user&id=36296 Score of 5
11.5.1.6 Left-aligning section numbers in the margin

https://tex.stackexchange.com/landing/r/digest?cta=question&id=735572

In the example underneath all the numbering of section, subsection and subsubsection is in the margin, but I'd like the numbering to be aligned on the left (like a virtual vertical line, as shown with ... 
[horizontal-alignment] [sectioning] [numbering]
 
asked by MrI2C https://tex.stackexchange.com/landing/r/digest?cta=user&id=189283 Score of 6
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 6
11.5.1.7 How can one typeset an upright hash symbol?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=735404

%%%%%%%%%%%%%%%%%%%%% 
\cprotect\subsubsection{\verb|I want my hash to appear as it does in the image below|} 
\url{fromhttps://mathworld.wolfram.com/Primorial.html} 
 
\begin{TEXTWinline} 
I tried 
\# 
\text{\#} 
\textitt{\#} 
but these lead to, respectively, 
[symbols] [italic] [slanted]
 
asked by The Substitute https://tex.stackexchange.com/landing/r/digest?cta=user&id=22288 Score of 6
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 6