3.16.1 Top new questions this week

3.16.1.1 How to find out and interpret the LaTeX version number?

https://tex.stackexchange.com/questions/366586/how-to-find-out-and-interpret-the-latex-version-number

When I do latex -v to find out which version of latex (or pdftex, xelatex etc., outputs look similar) I am using, I get 
pdfTeX 3.14159265-2.6-1.40.16 (TeX Live 2015/Debian) 
[...] 
What does this  ...
 

- asked by fuenfundachtzig (13 votes), answered by Joseph Wright (19 votes)

3.16.1.2 Drawing random signal shape in tikz?

https://tex.stackexchange.com/questions/366223/drawing-random-signal-shape-in-tikz

Is it possible in tikz - in a simple way to draw a signal... 
I am interested in drawing something like this 
The shape of the signal does not matter... I just have to be able to draw the arrows and  ...
 

- asked by dfh (13 votes), answered by Zarko (24 votes)

3.16.1.3 How to put a square inside a commutative diagram?

https://tex.stackexchange.com/questions/366371/how-to-put-a-square-inside-a-commutative-diagram

How to put a square inside a commutative diagram as in the following picture: 
It would like to have a square in the following diagram: 
\documentclass[a4paper,12pt]{article} 
\usepackage{tikz-cd} 
...
 

- asked by Constantin K (12 votes), answered by Bernard (5 votes)

3.16.1.4 Typeset dots around numbers (old typography)

https://tex.stackexchange.com/questions/366061/typeset-dots-around-numbers-old-typography

I am trying to typeset some old book in which I notice that all numbers are surrounded with 1 dot (except if it's first in a line in which case there is no dot before or last in a line in which case  ...
 

- asked by Joseph (12 votes), answered by Gustavo Mezzetti (4 votes)

3.16.1.5 How should I have found out that LuaTeX removed \write18?

https://tex.stackexchange.com/questions/366189/how-should-i-have-found-out-that-luatex-removed-write18

I'm trying very hard not to make this sound like a rant, but I'm very angry right now. 
I was trying to use the TikZ externalization to create a scatter plot for my thesis. There were too many data  ...
 

- asked by marczellm (12 votes), answered by egreg (9 votes)

3.16.1.6 Why does \hspace* \fill  need \null for desired output?

https://tex.stackexchange.com/questions/366447/why-does-hspace-fill-need-null-for-desired-output

I was trying to centre some math within an enumerate list, without a lineskip. 
I eventually found this discussion of \hfill vs \hspace*{\fill} which seems to suggest that using \hspace*{\hfill} will  ...
 

- asked by Rax Adaam (10 votes), answered by David Carlisle (13 votes)

3.16.1.7 Frege's Notation for Part III of the Begriffsschrift

https://tex.stackexchange.com/questions/366002/freges-notation-for-part-iii-of-the-begriffsschrift

There are a couple packages I know of for helping one to lay out Frege's notation, with a focus on that in Basic Laws of Arithmetic (Grundgesetze der Arithmetik): begriff, fge, grundgesetze. However,  ...
 

- asked by Bob Offer-Westort (9 votes), answered by Udo Wermuth (7 votes)