5.42.1 Top new questions this week

5.42.1.1 Unit Circle and Circle of Radius R

https://tex.stackexchange.com/landing/r/digest?cta=question&id=521328

In order to complete a handout I was preparing, I wrote the code below (MWE): 
\documentclass[border=10pt,tikz]{standalone} 
\usetikzlibrary{calc,angles,positioning,decorations.pathreplacing} 
... 
[tikz-pgf]
 

asked by azetina https://tex.stackexchange.com/landing/r/digest?cta=user&id=10898 14 votes

answered by SchrA~\[Paragraph]dinger's cat https://tex.stackexchange.com/landing/r/digest?cta=user&id=194703 13 votes

5.42.1.2 Drawing Spirograph patterns

https://tex.stackexchange.com/landing/r/digest?cta=question&id=521684

I like drawing Spirograph patterns (which is plotted by a point in a wheel moving along a ring). I use a programme from this site, in which I posted this Tutorial help file. 
Is it possible to produce  ... 
[tikz-pgf]
 

asked by Hany https://tex.stackexchange.com/landing/r/digest?cta=user&id=93617 12 votes

answered by SchrA~\[Paragraph]dinger's cat https://tex.stackexchange.com/landing/r/digest?cta=user&id=194703 14 votes

5.42.1.3 Graphing Trigonometric Functions

https://tex.stackexchange.com/landing/r/digest?cta=question&id=521525

In my attempt to graph the transformation of a trigonometric function, I found myself having to work section by section. I researched the \foreach function to shorten the code and make it more robust  ... 
[tikz-pgf] [pgfplots] [foreach]
 

asked by azetina https://tex.stackexchange.com/landing/r/digest?cta=user&id=10898 10 votes

answered by SchrA~\[Paragraph]dinger's cat https://tex.stackexchange.com/landing/r/digest?cta=user&id=194703 8 votes

5.42.1.4 Commas in \cases - typographic standards?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=521362

I'm wondering what are the typographic standards for the placement of commas/dots in the following (and similar) case:\ 
The first option looks nicer, the second seems to be more logically  ... 
[punctuation] [typography]
 

asked by mavzolej https://tex.stackexchange.com/landing/r/digest?cta=user&id=94788 8 votes

answered by Scott H. https://tex.stackexchange.com/landing/r/digest?cta=user&id=14100 9 votes

5.42.1.5 Latest update of Oberdiek package: \declaretheoremstyle not working anymore

https://tex.stackexchange.com/landing/r/digest?cta=question&id=521300

Just updated to the 20 December build of the Oberdiek package, on my TeXLive installation. Files that compiled without problems are now throwing the following error: 
./Preamble.tex:78: Undefined  ... 
[errors] [thmtools] [oberdiek]
 

asked by brunoh https://tex.stackexchange.com/landing/r/digest?cta=user&id=9255 7 votes

answered by Phelype Oleinik https://tex.stackexchange.com/landing/r/digest?cta=user&id=134574 7 votes

5.42.1.6 latest update to oberdiek   auxhook.sty not found?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=521258

Just updated to the 20 December build of the obderdiek package, on my MikTex 64-bit installation. Files that compiled without problems are now throwing the following error: 
! LaTeX Error: File  ... 
[errors] [miktex] [missing] [oberdiek]
 

asked by Johnny Canuck https://tex.stackexchange.com/landing/r/digest?cta=user&id=16184 7 votes

5.42.1.7 How to write the code of this character?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=521622

I am writing my B.Sc. thesis. But, I have no idea how to write the following character: 
I was trying by $\mathcal{O}$, but this is not the same I want. 
[symbols]
 

asked by user454229 https://tex.stackexchange.com/landing/r/digest?cta=user&id=179316 6 votes

answered by SchrA~\[Paragraph]dinger's cat https://tex.stackexchange.com/landing/r/digest?cta=user&id=194703 18 votes