9.52.1 Top new questions this week

9.52.1.1 Why can the name of a `MathOperator` have a number?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=692785

This does not compile, which is what I'd expect: 
\documentclass{amsart} 
\newcommand{\G2}{G_2} 
%\DeclareMathOperator{\G2}{G_2} 
\begin{document} 
\(\G2\) 
\end{document} 
produces 
! LaTeX Error: Missing \... 
[macros] [math-operators] [catcodes]
 

asked by LSpice https://tex.stackexchange.com/landing/r/digest?cta=user&id=1169 Score of 8

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 9

9.52.1.2 Backtracking Equations

https://tex.stackexchange.com/landing/r/digest?cta=question&id=692647

I have been trying create the code that will replicate the backtracking boxes. I've not been able to split the boxes without using two different tikz pictures. I want the arrows to go from middle of ... 
[tikz-pgf] [tikz-arrows] [tikz-shape]
 

asked by Jon https://tex.stackexchange.com/landing/r/digest?cta=user&id=149116 Score of 8

answered by MS-SPO https://tex.stackexchange.com/landing/r/digest?cta=user&id=245790 Score of 6

9.52.1.3 How to make a loop to draw a sequence semicircles?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=692956

I tried to draw a sequence of semicirles. This is my code. 
\documentclass[tikz,border=5mm]{standalone} 
\usetikzlibrary{calc} 
\usepackage{tkz-euclide} 
\begin{document} 
\begin{tikzpicture} 
\... 
[tikz-pgf] [tkz-euclide]
 

asked by Laurenso https://tex.stackexchange.com/landing/r/digest?cta=user&id=271550 Score of 7

answered by Qrrbrbirlbel https://tex.stackexchange.com/landing/r/digest?cta=user&id=16595 Score of 4

9.52.1.4 Installing documentation only for certain packages

https://tex.stackexchange.com/landing/r/digest?cta=question&id=692587

I don't need the documentation for every single package that I have installed (it would take several GB on my disk for no reason). However, I'd like to download the documentation for a small number of ... 
[texlive] [texdoc]
 

asked by Najib Idrissi https://tex.stackexchange.com/landing/r/digest?cta=user&id=14965 Score of 7

answered by daleif https://tex.stackexchange.com/landing/r/digest?cta=user&id=3929 Score of 8

9.52.1.5 All Caps with Commands

https://tex.stackexchange.com/landing/r/digest?cta=question&id=692949

I am trying to set some text in all caps (not small caps) using the \uppercase command. Part of the text is variable and stored in a separate command, but that portion of the text is being set in ... 
[capitalization]
 

asked by bbernicker https://tex.stackexchange.com/landing/r/digest?cta=user&id=250103 Score of 5

answered by Stephen https://tex.stackexchange.com/landing/r/digest?cta=user&id=241621 Score of 12

9.52.1.6 Adjusting two "three part tables" side by side in a document

https://tex.stackexchange.com/landing/r/digest?cta=question&id=692667

I am trying to put two "three part tables" side by side in a document using this TeX code: 
\documentclass[10pt, a4paper]{article} 
\usepackage[a4paper, total={7in, 10in}]{geometry} 
\... 
[tables] [formatting] [article] [booktabs] [threeparttable]
                                                                                  

                                                                                  
 

asked by codebpr https://tex.stackexchange.com/landing/r/digest?cta=user&id=279922 Score of 5

answered by Mico https://tex.stackexchange.com/landing/r/digest?cta=user&id=5001 Score of 5

9.52.1.7 How to overwrite files generated by filecontents environment

https://tex.stackexchange.com/landing/r/digest?cta=question&id=692637

I am using latex to generate figures, here is a simple example. 
\documentclass[ 
border={0mm 0mm 0mm 0mm}, % left bottom right top 
]{standalone} 
\usepackage{tikz,stackengine} 
\usepackage{pgfplotstable} 
... 
[pgfplots] [pgfplotstable] [filecontents]
 

asked by wxwuse https://tex.stackexchange.com/landing/r/digest?cta=user&id=297798 Score of 5

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 4