9.80.1 Top new questions this week

9.80.1.1 What is \directlua0   vs \directlua

https://tex.stackexchange.com/landing/r/digest?cta=question&id=702542

The title is the question. According to the LuaTeX manual, command \directlua{code} may have a 16-bit number between the command and the code, and I have seen \directlua0{code} here and there. But I ... 
[luatex] [directlua]
 

asked by rallg https://tex.stackexchange.com/landing/r/digest?cta=user&id=287367 Score of 10

answered by Marcel KrA~\274ger https://tex.stackexchange.com/landing/r/digest?cta=user&id=80496 Score of 7

9.80.1.2 Problem with square brackets in tabularray

https://tex.stackexchange.com/landing/r/digest?cta=question&id=702405

I run into trouble with this example. 
\documentclass{article} 
\usepackage{tabularray} 
\begin{document} 
\begin{tblr}{ccc} \hline 
m & mG & Weight \\ \hline 
[0, 0, 0] &... 
[tabularray]
 

asked by S. Venkataraman https://tex.stackexchange.com/landing/r/digest?cta=user&id=142225 Score of 8

answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 10

9.80.1.3 What is the recommended way to use \everypar now that LaTeX has hooks?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=702429

Now that LaTeX has hooks, there is a recommendation to use the hooks interface for everypar? How should this be done in l3 programs? 
\documentclass{article} 
\ExplSyntaxOn 
\newcounter{eplinenumber} 
\... 
[lthooks] [everypar]
                                                                                  

                                                                                  
 

asked by Yiannis Lazarides https://tex.stackexchange.com/landing/r/digest?cta=user&id=963 Score of 8

answered by cfr https://tex.stackexchange.com/landing/r/digest?cta=user&id=39222 Score of 2

9.80.1.4 How to make a different greater/less than symbol that is used in 17th century math

https://tex.stackexchange.com/landing/r/digest?cta=question&id=702427

At the moment Ia^\200\231m writing my thesis and I want to use the symbol that the original author used. It is a form of greater/less than symbol, just a tad bit different. Ia^\200\231ve tried quite a few things ... 
[symbols]
 

asked by N0ukz https://tex.stackexchange.com/landing/r/digest?cta=user&id=308807 Score of 8

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 15

9.80.1.5 Dectect if using \tikzmark or \tikzmarknode

https://tex.stackexchange.com/landing/r/digest?cta=question&id=702241

I would like to be able to detect if a particular mark was made with 
\tikzmark (which requires the use of pic cs:) or if it was made with 
\tikzmarknode (which requires that pic cs: is not used). 
... 
[tikz-pgf] [tikzmark]
 

asked by Peter Grill https://tex.stackexchange.com/landing/r/digest?cta=user&id=4301 Score of 6

answered by Jasper Habicht https://tex.stackexchange.com/landing/r/digest?cta=user&id=47927 Score of 3

9.80.1.6 Doesn't "\romannumeral1986" equal "mcmlxxxvi" in TeX?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=702159

In TeX, 
\uppercase{\romannumeral1986}\par 
%\catcode`\m=12 
\uppercase{mcmlxxxvi} 
\bye 
produces 
So, doesn't mcmlxxxvi equal \romannumeral1986? What the difference between them? \expandafter can bypass ... 
[tex-core] [roman-numerals] [uppercase] [expandafter]
 

asked by Y. zeng https://tex.stackexchange.com/landing/r/digest?cta=user&id=245010 Score of 6

answered by Willie Wong https://tex.stackexchange.com/landing/r/digest?cta=user&id=119 Score of 12

9.80.1.7 How to determine if a symbol / command is a relation?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=702635

I am using \sim as a binary operator and was wondering which of the following two was correct: 
\documentclass{article} 
\begin{document} 
\[a \sim b\] 
\[a \mathrel{\sim} b\] 
\end{document} 
... 
[math-mode] [spacing]
 

asked by ClA~(c)ment https://tex.stackexchange.com/landing/r/digest?cta=user&id=34551 Score of 5

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