12.12.1 Top new questions this week

12.12.1.1 Generate random, unique, nonzero integers

https://tex.stackexchange.com/landing/r/digest?cta=question&id=759851

I've been writing some commands that I use to randomize writing exam questions. I currently have the following code for generating "variables" containing (possibly non-zero) random integers: 
... 
[expl3] [random-numbers]
 

asked by pwesterbaan https://tex.stackexchange.com/landing/r/digest?cta=user&id=190910 Score of 10

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 7

12.12.1.2 What is the best way to draw a potato (like found in vector analysis/continuum mechanics courses)

https://tex.stackexchange.com/landing/r/digest?cta=question&id=760046

I apologized if this is a duplicate. 
What is the best way to draw such figures with tikz (or other packages)? 
For the time being just the potato like figure. I do not care for the vectors and the ... 
[tikz-pgf]
 

asked by Dimitrios ANAGNOSTOU https://tex.stackexchange.com/landing/r/digest?cta=user&id=284130 Score of 7

answered by Jasper https://tex.stackexchange.com/landing/r/digest?cta=user&id=319072 Score of 11

12.12.1.3 Wrong links in \hyperref

https://tex.stackexchange.com/landing/r/digest?cta=question&id=760085

Sorry everyone. I just did an update, which was probably a mistake, and encountered another problem with hyperref. For years I've been using a workaround which I borrowed from a journal, and it worked.... 
[hyperref]
                                                                                  

                                                                                  
 

asked by Alex Degtyarev https://tex.stackexchange.com/landing/r/digest?cta=user&id=341171 Score of 6

answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2388 Score of 3

12.12.1.4 Directlua can not add options to tikz node

https://tex.stackexchange.com/landing/r/digest?cta=question&id=760020

I'm trying to set up some parameters of nodes from lua code. 
I don't understand why the first version works but not the second. 
\documentclass[border=10pt]{standalone} 
\usepackage{tikz} 
\begin{... 
[tikz-styles] [directlua]
 

asked by Norodix https://tex.stackexchange.com/landing/r/digest?cta=user&id=434782 Score of 6

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

12.12.1.5 Create a directed graph

https://tex.stackexchange.com/landing/r/digest?cta=question&id=759925

I want to create the following figure. 
Using the following code, I managed to get something close. But I cannot figure out how to get properly the diagonal vectors without too much trial and error. ... 
[tikz-pgf] [graphs]
 

asked by Dimitrios ANAGNOSTOU https://tex.stackexchange.com/landing/r/digest?cta=user&id=284130 Score of 6

answered by nidarfp https://tex.stackexchange.com/landing/r/digest?cta=user&id=406312 Score of 8

12.12.1.6 uneven commutative diagram

https://tex.stackexchange.com/landing/r/digest?cta=question&id=759877

I want to draw the following commutative diagram in LaTeX: 
I have tried tikzcd, but I think I won't work, since the rows have different size. Is there a clean way to do it? 
EDIT: my first approach ... 
[tikz-pgf] [tikz-cd] [commutative-diagrams]
 

asked by mappingmoe https://tex.stackexchange.com/landing/r/digest?cta=user&id=434507 Score of 6

answered by daleif https://tex.stackexchange.com/landing/r/digest?cta=user&id=3929 Score of 8

12.12.1.7 Formatting a sequence of items with comma and ending with 'and' or 'respectively'

https://tex.stackexchange.com/landing/r/digest?cta=question&id=760124

Can someone help me create a macro like 
\MyList{A;B;C;D;E;F} 
which returns 'A, B, C, D, E[,] respectively F" independently on how many 'arguments' (2+) that are specified and also support math, ... 
[strings]
 

asked by mf67 https://tex.stackexchange.com/landing/r/digest?cta=user&id=175045 Score of 5

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 9