9.66.1 Top new questions this week

9.66.1.1 LuaTeX, unicode-math and italic correction

https://tex.stackexchange.com/landing/r/digest?cta=question&id=697498

I was having some difficulty with  LuaTeX and the unicode-math package. Below is a MWE, 
\documentclass[12pt]{article} 
\usepackage[math-style=ISO]{unicode-math} 
\begin{document} 
\[ 
f(T), f\left( T ... 
[luatex] [unicode-math] [italic-correction]
 

asked by flinch9483 https://tex.stackexchange.com/landing/r/digest?cta=user&id=305293 Score of 13

answered by mickep https://tex.stackexchange.com/landing/r/digest?cta=user&id=52406 Score of 9

9.66.1.2 How to create an active tilde in LaTeX 3

https://tex.stackexchange.com/landing/r/digest?cta=question&id=697493

I have some  LaTeX3 code that generates matrices and uses the hhline package internally. In LaTeX3 the ~ character is a special character, used for inserting spaces in strings, and using \c_tilde_str ... 
[expl3] [expansion] [hhline]
 

asked by 314159265358979323 https://tex.stackexchange.com/landing/r/digest?cta=user&id=234252 Score of 10

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 10

9.66.1.3 Detect catcode of next character?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=697260

I use only lualatex, but I suspect this is a general question, having something to do with core TeX. 
Is there such a thing as \ifnextcatcode ? Pseudo-code: 
\def\wanted{\ifnextcatcode{12}{\dothis}{\... 
[tex-core] [catcodes]
 

asked by rallg https://tex.stackexchange.com/landing/r/digest?cta=user&id=287367 Score of 8

answered by cfr https://tex.stackexchange.com/landing/r/digest?cta=user&id=39222 Score of 7

9.66.1.4 Arara doesn't work anymore after package update to v 7.1.1

https://tex.stackexchange.com/landing/r/digest?cta=question&id=697292

I am writing Latex code in VSCode with TexLive installed on Windows 10 and I am using Arara. 
% arara: pdflatex: { shell: yes } 
%! arara: biber 
% arara: pdflatex 
%! arara: pdflatex 
Everything worked ... 
[texlive] [arara] [java] [latex-workshop]
 

asked by Giuseppe https://tex.stackexchange.com/landing/r/digest?cta=user&id=302204 Score of 7

answered by Giuseppe https://tex.stackexchange.com/landing/r/digest?cta=user&id=302204 Score of 1

9.66.1.5 Filling in a Torus with 2 Colors

https://tex.stackexchange.com/landing/r/digest?cta=question&id=697344

I have been looking into drawing a torus in LaTeX and came across the post Torus with lines winding along different axis, where the response by user194703 involved the following block of code (which I ... 
[tikz-pgf]
 

asked by tumm https://tex.stackexchange.com/landing/r/digest?cta=user&id=305202 Score of 6

answered by user187802 https://tex.stackexchange.com/landing/r/digest?cta=user&id=187802 Score of 3

9.66.1.6 What is the status of long equation automatic breaking in context?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=697410

I was reading 
another breqn problem. Extra letters show up in title with cprotect package 
And the answer says: 
In an upcoming version ConTeXt MKIV will introduce automatic 
linebreaking for formulas ... 
[context] [breqn]
 

asked by Nasser https://tex.stackexchange.com/landing/r/digest?cta=user&id=14594 Score of 6

answered by mickep https://tex.stackexchange.com/landing/r/digest?cta=user&id=52406 Score of 6

9.66.1.7 unicode-math, Fira Math: Fira Math font lacks scalable slash delimiters; how to pull from a different math font?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=697394

I'm making slides using beamer with Fira as the main font, and I want to use Fira Math to match it. However, I've found that Fira Math does not seem to have scalable forward slash delimiters, which I ... 
[unicode-math]
 

asked by Jigsaw https://tex.stackexchange.com/landing/r/digest?cta=user&id=156649 Score of 6

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 1