4.21.1 Top new questions this week

4.21.1.1 Embed a graph on a Sphere with TikZ?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=436669

I want to draw a graph on a sphere using TikZ. Something like this (please excuse my crude drawing): 
Is there a way this can be done automatically? I'm sure there's a way to perform a change of  ... 
[tikz-pgf] [tikz-styles]
 

asked by Luke Collins https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=78913 15 votes

answered by marmot https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=121799 15 votes

4.21.1.2 About what TeX does after it finds commented conditionals with ltxdoc

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=437389

When I thought I understood the concept of the doc package, LaTeX proved me wrong. 
I was trying to make a file to use with ltxdoc when I realised I could not use conditionals in the preamble because  ... 
[tex-core] [conditionals] [doc]
 

asked by Phelype Oleinik https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=134574 13 votes

answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2388 9 votes

4.21.1.3 reflectbox in emphasis environment

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=436493

I try to get irony punctuation mark in LaTeX with CMU font. This symbol is in Unicode: a^,(R) (U+U+2E2E) 
So I search a way to get a correct rendering with CMU of this symbol. But the problem is the  ... 
[graphics] [symbols] [punctuation] [emphasis] [reflection]
 

asked by fauve https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=30933 12 votes

answered by egreg https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=4427 11 votes

4.21.1.4 Plot Fibonacci Sequence (with tikzpicture)

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=437064

How do I plot the Fibonacci sequence (using tikzpicture preferably)? 
\documentclass{article} 
\usepackage{pgfplots} 
\begin{document} 
\begin{tikzpicture} 
\begin{axis}[xmin=0, xmax=30, ymin=2,  ... 
[tikz-pgf]
 

asked by DeeCeeDelux https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=113772 9 votes

answered by Kpym https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=9335 10 votes

4.21.1.5 problem with string.format, \directlua and tex.sprint

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=436979

I wonder if someone could explain to me why 
\documentclass{article} 
\begin{document} 
the standard approximation $\pi = \directlua{tex.sprint(math.pi)}$ 
\end{document} 
works all right, whereas 
... 
[luatex]
 

asked by A Navarro https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=165308 8 votes

answered by Mico https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=5001 11 votes

4.21.1.6 Draw a demonstration of Pythagorean theorem with TikZ

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=436812

I have to draw a visual representation of Pythagorean theorem. I had the initial approach of drawing the triangle in the middle and then work my way up by handling the squares. But it seems to much  ... 
[tikz-pgf]
 

asked by Robur_131 https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=155219 8 votes

answered by marmot https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=121799 13 votes

4.21.1.7 Runaway argument? with \newcommand[2]

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=436868

I have a date (in the format YYYY.MM.DD) and a time (format HH:MM). 
From these, I want to compute a kind of  TimeStamp/Total of minutes. 
\documentclass{article} 
\makeatletter 
% Timestamp 
... 
[parsing] [arguments]
 

asked by Joseph Marie https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=146600 8 votes

answered by Andrew Swann https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=15925 7 votes