7.51.1 Top new questions this week

7.51.1.1 What is happening when a backslash with an asterisk (\*) is read?
7.51.1.2 \mathopen<size><bracket> vs. \mathopen <size><bracket>
7.51.1.3 Switching algebra
7.51.1.4 Is this IPA symbol for a long vowel available?
7.51.1.5 Split string into part by char position
7.51.1.6 Rescaling environment
7.51.1.7 add multilevel caption in figures
7.51.1.1 What is happening when a backslash with an asterisk (\*) is read?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=611205

I'm writing tutorial of TeX and I accidently typed \* and realized the compiler does not read it as an error. I know that adding * triggers \ifstar condition, but I'm curious that how compiler treat \*... 
[compiling]
 
asked by haur576 https://tex.stackexchange.com/landing/r/digest?cta=user&id=245808 9 votes
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 9 votes
7.51.1.2 \mathopen<size><bracket> vs. \mathopen <size><bracket>

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610706

If we look at the definitions of \bigl and \bigr, we find 
\def\bigl{\mathopen\big} 
\def\bigr{\mathclose\big} 
In other words, \bigl<bracket> is equivalent to \mathopen\big<bracket>. 
And ... 
[brackets] [scaling] [mathtools]
 
asked by Gaussler https://tex.stackexchange.com/landing/r/digest?cta=user&id=19809 8 votes
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 5 votes
7.51.1.3 Switching algebra

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610463

This is one for the expansion gurus. I'm trying to use switching algebra to show a colleague that you can do that in LaTeX. I would like to use parentheses because it resembles normal function calls (... 
[expansion]
 
asked by Jesse op den Brouw https://tex.stackexchange.com/landing/r/digest?cta=user&id=159794 8 votes
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 8 votes
7.51.1.4 Is this IPA symbol for a long vowel available?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610854

Is the below marked symbol available in any of the font? 
[symbols] [linguistics]
 
asked by MadyYuvi https://tex.stackexchange.com/landing/r/digest?cta=user&id=121024 6 votes
answered by citsahcots https://tex.stackexchange.com/landing/r/digest?cta=user&id=203859 16 votes
7.51.1.5 Split string into part by char position

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610910

Explanations 
I format a moroccan RIB (RelevA~(c) da^\200\231identitA~(c) bancaire for 'Bank account number') to display it as a nice rendering. I need to take each part of the RIB to embrace it with a specific label. 
... 
[strings] [parsing]
 
asked by fauve https://tex.stackexchange.com/landing/r/digest?cta=user&id=30933 6 votes
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 6 votes
7.51.1.6 Rescaling environment

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610846

%%%%%%%%%%%%%%%%%%%%% 
\cprotect\subsubsection{\verb|I'm creating a crossword puzzle using the cwpuzzle package|} 
\url{http://www.gerd-neugebauer.de/software/TeX/cwpuzzle/en/} 
 
\begin{TEXTWinline} 
I need the solution to be displayed in a much smaller format (say, 50% the ... 
[environments] [scaling] [puzzle]
 
asked by Maiaux https://tex.stackexchange.com/landing/r/digest?cta=user&id=176343 6 votes
answered by Steven B. Segletes https://tex.stackexchange.com/landing/r/digest?cta=user&id=25858 4 votes
7.51.1.7 add multilevel caption in figures

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610813

I am working on overleaf, i need to place images caption like this (highlighted with red pen and blue pen in figure below) separate caption for every image then one caption for two images. The code is ... 
[floats] [subfloats]
 
asked by Alex https://tex.stackexchange.com/landing/r/digest?cta=user&id=241724 5 votes
answered by Mico https://tex.stackexchange.com/landing/r/digest?cta=user&id=5001 9 votes