5.25.1 Top new questions this week

5.25.1.1 How do I reproduce this layout and typography?
5.25.1.2 Finding Greatest Common Divisor using LuaLatex
5.25.1.3 Align the contents of a numerical matrix when you have minus signs
5.25.1.4 How can I create an article with a title like the 1960s Journal of Finance?
5.25.1.5 Giving blur shadow to plot
5.25.1.6 What does <recently read> etc. mean in TeX's error message
5.25.1.7 Symbol of the tennis ball
5.25.1.1 How do I reproduce this layout and typography?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=500591

IMHO, some math books published by the German company Hanser have a very pleasing layout. I'm attaching an example below (screenshot from Google Books which I hope is fair use). 
I guess this was done  ... 
[fonts] [typography]
 
asked by Frunobulax https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=52582 11 votes
answered by Sebastiano https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=117876 17 votes
5.25.1.2 Finding Greatest Common Divisor using LuaLatex

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=500932

Here is my code to find Greatest Common Divisor of two positive integers. 
\documentclass{article} 
\usepackage{luacode} 
\begin{luacode} 
function gcd(a,b) 
if b ~= 0 then 
return gcd(b, a %  ... 
[luatex] [lua] [luacode] [directlua]
 
asked by user61681 https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=75476 9 votes
answered by egreg https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=4427 12 votes
5.25.1.3 Align the contents of a numerical matrix when you have minus signs

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=500655

I have a matrix that looks like 
\begin{equation*} 
\left [\begin{array}{cccccc} 
0 & 0 & 6 & -6 & 0 & 0 \\ 
0 & 0 & -6 & 6 & 0 & 0 \\ 
0  ... 
[horizontal-alignment] [matrices]
 
asked by OlA~\263rin https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=98636 9 votes
answered by Bernard https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=38908 11 votes
5.25.1.4 How can I create an article with a title like the 1960s Journal of Finance?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=500863

Here's a classic article from the Journal of Finance:https://psc.ky.gov/pscecf/2012-00221/rateintervention@ag.ky.gov/10252012f/sharpe_-_CAPM.pdf 
How can I create a first page that emulates the first  ... 
[formatting] [titles] [templates]
 
asked by cgmil https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=189300 8 votes
answered by Sveinung https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=9632 12 votes
5.25.1.5 Giving blur shadow to plot

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=501144

How can I give the plot the blur effect that you can see in the picture below? 
\documentclass[tikz,border=7pt]{standalone} 
\usetikzlibrary{positioning,arrows.meta} 
\begin{document} 
... 
[tikz-pgf]
 
asked by NaveganTeX https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=185467 8 votes
answered by marmot https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=121799 8 votes
5.25.1.6 What does <recently read> etc. mean in TeX's error message

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=500695

TeX will encounter an error with the following code: 
\documentclass{article} 
\test 
\begin{document} 
\end{document} 
It will give a message as: 
! Undefined control sequence. 
<recently read>  ... 
[errors] [tex-core]
 
asked by stone-zeng https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=136923 8 votes
answered by ShreevatsaR https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=48 12 votes
5.25.1.7 Symbol of the tennis ball

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=501338

I have been looking for a few days a package that it contains a command/symbol to use with pdfLaTeX, without using TikZ, of the  tennis ball. I have seen The Comprehensive LATEX Symbol List where  ... 
[pdftex] [symbols] [packages] [amssymb]
 
asked by Sebastiano https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=117876 7 votes
answered by Paul Gaborit https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=14500 9 votes