11.58.1 Top new questions this week

11.58.1.1 How to draw the stereographic projection in mathematics?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=750447

I have tried the following tikz-pgf code to draw the stereographic projection: 
\documentclass[tikz,border=10pt]{standalone} 
\usetikzlibrary{arrows.meta} 
\begin{document} 
\begin{tikzpicture}[scale=3] 
... 
[tikz-pgf] [mathematics] [gif]
 

asked by Learner https://tex.stackexchange.com/landing/r/digest?cta=user&id=335577 Score of 8

answered by Jasper https://tex.stackexchange.com/landing/r/digest?cta=user&id=319072 Score of 10

11.58.1.2 Is that extra empty space below the `\xRightarrow`?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=750374

As I was browsing this excellent solution, it seemed that there exist extra empty space below the arrow: 
Is this a small bug or feature designed intentionally? Or is that elegant method to balance ... 
[amsmath] [mathtools]
 

asked by Explorer https://tex.stackexchange.com/landing/r/digest?cta=user&id=322482 Score of 8

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 6

11.58.1.3 How to properly fill the area under a hyperbola arc in TikZ without fillbetween?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=750414

I'm trying to color the area bounded by the hyperbola xA^\262a^\210\222yA^\262=1 the x-axis, and the origin 
O in TikZ. 
My current code is: 
\documentclass[11pt]{article} 
\usepackage{tikz} 
\begin{document} 
\begin{... 
[tikz-pgf] [backgrounds] [fill] [tikzlibrary]
                                                                                  

                                                                                  
 

asked by Sebastiano https://tex.stackexchange.com/landing/r/digest?cta=user&id=117876 Score of 8

answered by Juan CastaA~+-o https://tex.stackexchange.com/landing/r/digest?cta=user&id=231368 Score of 9

11.58.1.4 The forbidden nesting of matrices

https://tex.stackexchange.com/landing/r/digest?cta=question&id=750420

In tikz the nesting of matrices is strictly forbidden. One can write something like 
\[ 
\begin{tikzpicture} 
\matrix (m) [matrix of nodes,nodes={anchor=center}] { 
1 & \tikz{\draw(0,0)--(1,1)(0,1)--(... 
[tikz-pgf] [amsmath] [tikz-matrix]
 

asked by Ted Black https://tex.stackexchange.com/landing/r/digest?cta=user&id=236759 Score of 8

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 6

11.58.1.5 LuaLaTeX Accessible PDF not validated by Yuja Panorama

https://tex.stackexchange.com/landing/r/digest?cta=question&id=750324

I am having serious problems generating a PDF in TeX that passes my accessibility checker.  Below is a minimal working example that should produce an accessible PDF, but the checker highlights that ... 
[luatex] [pdf] [accessibility] [tagged-pdf] [alttext]
 

asked by layman https://tex.stackexchange.com/landing/r/digest?cta=user&id=46944 Score of 8

answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2388 Score of 12

11.58.1.6 Why does docstrip plus memoization insert a newline/paragraph between two items?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=750440

Ref.:https://github.com/sasozivanovic/memoize/issues/50#issue-3370785926 
Two MWEs ... 
First MWE: 
% \iffalse 
%<*driver> 
\documentclass[10pt,a4paper]{ltxdoc} 
\usepackage[extract=python]{memoize} 
... 
[spacing] [vspace] [externalize] [docstrip] [memoize]
 

asked by cfr https://tex.stackexchange.com/landing/r/digest?cta=user&id=39222 Score of 7

answered by SaAo\[DownExclamation]o Ao\275ivanoviA"\207 https://tex.stackexchange.com/landing/r/digest?cta=user&id=16819 Score of 7

11.58.1.7 How to create a beamer presentation in multiple languages/variations from one data set?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=750350

From a single data source (in this case: LaTeX file), the presentation should be compilable to different outputs: Slides with overlays as well as a handout, both variants also for multiple languages. ... 
[beamer] [languages] [handout] [multiple-versions] [localization]
 

asked by dsacre https://tex.stackexchange.com/landing/r/digest?cta=user&id=260651 Score of 6

answered by samcarter_is_at_topanswers.xyz https://tex.stackexchange.com/landing/r/digest?cta=user&id=36296 Score of 5