9.76.1 Top new questions this week

9.76.1.1 Zassenhaus's Butterfly Lemma

https://tex.stackexchange.com/landing/r/digest?cta=question&id=701173

I am preparing lecture notes for an abstract algebra course I am teaching. I would like to draw the following diagram, which is from Zassenhaus's Butterfly lemma. 
$K$ in the diagram is the group $(G'\... 
[diagrams] [lemma]
 

asked by Aravind Gundakaram https://tex.stackexchange.com/landing/r/digest?cta=user&id=307981 Score of 20

answered by Jasper Habicht https://tex.stackexchange.com/landing/r/digest?cta=user&id=47927 Score of 20

9.76.1.2 Writing I^\274 (mu) in the text mode using Latin Modern Roman font

https://tex.stackexchange.com/landing/r/digest?cta=question&id=700940

Is there a way to write the literal I^\274 character using the Latin Modern Roman font or another font with the same font aesthetics/characteristics? 
The following gets me this error 
{C:/Users/Diaa/... 
[fonts] [fontspec] [greek] [latin-modern]
 

asked by Diaa https://tex.stackexchange.com/landing/r/digest?cta=user&id=2288 Score of 7

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 12

9.76.1.3 stepcounter, description and lipsum

https://tex.stackexchange.com/landing/r/digest?cta=question&id=701401

For some reason I would like a description with a counter. 
This works: 
\documentclass[]{scrreprt} 
\usepackage{scrlayer-scrpage} 
\usepackage[ngerman]{babel} 
\usepackage{fontspec} 
\usepackage{enumitem} 
... 
[counters] [value]
 

asked by Patrick https://tex.stackexchange.com/landing/r/digest?cta=user&id=308054 Score of 5

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 9

9.76.1.4 I want to have exactly 12.5 mm between my figures/tikz figures. How do I do this?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=700989

For a project I am supposed to draw different graphs with edges and vertices. One of the points of the project is that the distance between the graphs should exactly be 12.5 mm, but I can't find a way ... 
[overleaf] [tikz-trees] [graphs] [figure-placement]
 

asked by Lisastronomy https://tex.stackexchange.com/landing/r/digest?cta=user&id=279824 Score of 5

answered by muzimuzhi Z https://tex.stackexchange.com/landing/r/digest?cta=user&id=79060 Score of 5

9.76.1.5 How can I connect all nodes with lines by using TikZ?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=700981

I'm working on the figure below, trying to connect all the vertices with multiple lines 
Is it possible to number the vertices from 1 to 60 and connect them all together? 
My attempts 
\begin{figure}[h] 
... 
[tikz-pgf] [diagrams]
 

asked by Emad kareem https://tex.stackexchange.com/landing/r/digest?cta=user&id=121554 Score of 5

answered by Jasper Habicht https://tex.stackexchange.com/landing/r/digest?cta=user&id=47927 Score of 12

9.76.1.6 Luarandom causes infinite loop

https://tex.stackexchange.com/landing/r/digest?cta=question&id=701012

I'm trying to get a list of unique random integers within an interval with the luarandom package. 
Here is a MWE, adapted from the package documentation: 
\documentclass{article} 
\usepackage{luarandom} 
\... 
[lua]
 

asked by Matthew Leingang https://tex.stackexchange.com/landing/r/digest?cta=user&id=1402 Score of 5

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

9.76.1.7 Why do optional arguments of commands affect spacing of \mathcolor

https://tex.stackexchange.com/landing/r/digest?cta=question&id=701416

I am very surprised that simply adding an optional argument to the definition of my command changes the spacing in formulas in combination with \mathcolor. Why does this happen? How can this be fixed? 
... 
[macros] [spacing] [color] [optional-arguments]
 

asked by Jakob https://tex.stackexchange.com/landing/r/digest?cta=user&id=128042 Score of 4

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 2