5.23.1 Top new questions this week

5.23.1.1 Matrices with shadows

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=498845

I'm trying to draw the shadows and also the dots between the two matrices: 
\documentclass{article} 
\usepackage{amsmath} 
\begin{document} 
\centering 
\begin{tabular}{|c|c|c|c|c|c|c|c|} 
... 
[tikz-pgf] [matrices]
 

asked by NaveganTeX https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=185467 10 votes

answered by marmot https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=121799 12 votes

5.23.1.2 Why my document is not hyphenation on words starting with upper case letter? (I am not using uchyph=0)

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=499457

I recently noticed on my thesis (template here) that words starting with upper case letter are not hyphenating. Then, I researched and found about the usage of \uchyph=0 How do I prevent TeX from  ... 
[fonts] [fontsize] [hyphenation] [capitalization] [microtype]
 

asked by user https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=119062 8 votes

answered by David Carlisle https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=1090 6 votes

5.23.1.3 Matrix with arrows and comments

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=499124

Sending out the bat signal 
Can you help me to draw this matrix along with the arrows and the comments? 
MWE: 
\documentclass{beamer} 
\usepackage{xcolor} 
\usepackage{array} 
... 
[tikz-pgf]
 

asked by NaveganTeX https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=185467 8 votes

answered by Herr K. https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=18228 8 votes

5.23.1.4 What does "frozen" mean (e.g. for catcodes)?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=498716

In a comment (emphasis mine) 
no, it has to change catcodes and this don't work if they are already frozen 
in response to my comment on her answer Ulrike Fischer mentioned the concept of frozen  ... 
[syntax]
 

asked by 0xC0000022L https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=3925 8 votes

answered by David Carlisle https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=1090 11 votes

5.23.1.5 Programmatically Illustrating Permutations

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=499447

Here's an illustration of what's known as an expansion permutation (the top half). It just means that instead of going straight through (like the bottom half aka. the identity permutation), the signal  ... 
[tikz-pgf] [diagrams] [graphs] [loops] [programming]
 

asked by tjt263 https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=165801 7 votes

answered by marmot https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=121799 7 votes

5.23.1.6 Tipa not working

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=499127

I'm trying to type the phonetic transcription of some words with tipa but it's not compiling correctly and the glyphs don't show up. Here's a MWE of my code compiled with LuaLaTeX: 
... 
[symbols] [luatex] [tipa]
 

asked by Levy https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=48279 7 votes

answered by Davislor https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=61644 6 votes

5.23.1.7 is there a tex font set for this kind of curly alphabet?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=499448

the symbols comes from this post 
is there a tex font set for this kind of curly alphabet? 
[math-mode] [fonts]
 

asked by fu DL https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=192582 6 votes

answered by Phelype Oleinik https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=134574 12 votes