6.70.1 Top new questions this week

6.70.1.1 What's the appeal of Overleaf?
6.70.1.2 How can I draw a water lily in LaTeX?
6.70.1.3 LaTeX prehistory
6.70.1.4 How to create a new math symbol?
6.70.1.5 Trouble with xcoffins in TL2020
6.70.1.6 Drawing a Venn diagram with three circles in a certain style
6.70.1.7 Worksheets with Big Numbers
6.70.1.1 What's the appeal of Overleaf?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=573627

Please to forgive the somewhat broad question, but what exactly is the deal with and appeal of Overleaf & Co.? What do I get out of it that I would not from the local LaTeX distribution of my ... 
[overleaf]
 
asked by Ingmar https://tex.stackexchange.com/landing/r/digest?cta=user&id=26614 34 votes
answered by LaTeXereXeTaL https://tex.stackexchange.com/landing/r/digest?cta=user&id=218142 58 votes
6.70.1.2 How can I draw a water lily in LaTeX?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=573574

I wonder, can anyone draw a picture like this? 
I tried, but I'm at the very beginning... There should be four semicircles and one full circle. I've managed to draw only two of them so far. Here's my ... 
[tikz-pgf] [asymptote] [circles]
 
asked by JoudaBouda https://tex.stackexchange.com/landing/r/digest?cta=user&id=230245 19 votes
answered by Black Mild https://tex.stackexchange.com/landing/r/digest?cta=user&id=140722 14 votes
6.70.1.3 LaTeX prehistory

https://tex.stackexchange.com/landing/r/digest?cta=question&id=574079

I came into LaTeX in the 80s and my copy of LaTeX: A Document Preparation System already described LaTeX 2.09. I'm curious if anyone here knows about the versions of LaTeX that preceded that. What ... 
[tex-history] [latex-2.09]
 
asked by Don Hosek https://tex.stackexchange.com/landing/r/digest?cta=user&id=202780 13 votes
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 10 votes
6.70.1.4 How to create a new math symbol?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=573850

How can I create my own scalable math operator with limits just like the sum symbol? Specifically I want to invent a "concatenation" symbol that looks alike to: "[". For example I ... 
[symbols] [math-operators]
 
asked by Leonardo Vanni https://tex.stackexchange.com/landing/r/digest?cta=user&id=230383 13 votes
answered by Sandy G https://tex.stackexchange.com/landing/r/digest?cta=user&id=125871 33 votes
6.70.1.5 Trouble with xcoffins in TL2020

https://tex.stackexchange.com/landing/r/digest?cta=question&id=573514

Consider the following MWE: 
\documentclass[11pt,a4paper]{article} 
\usepackage{xcoffins} 
\NewCoffin\lcoffin 
\NewCoffin\fcoffin 
\parindent=0pt 
\begin{document} 
\fbox{\parbox{.25\textwidth}{\begin{... 
[texlive] [latex3] [texlive-2020] [xcoffins]
 
asked by cfr https://tex.stackexchange.com/landing/r/digest?cta=user&id=39222 9 votes
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 6 votes
6.70.1.6 Drawing a Venn diagram with three circles in a certain style

https://tex.stackexchange.com/landing/r/digest?cta=question&id=573702

My knowledge of tikz is very limited. How can I move the middle circle (M_3) up, so that it looks like a typical Venn diagram? 
My progress so far: 
My code so far: 
\documentclass{article} 
\usepackage{... 
[tikz-pgf] [venn-diagrams]
                                                                                  

                                                                                  
 
asked by NilsK https://tex.stackexchange.com/landing/r/digest?cta=user&id=224035 7 votes
answered by schtandard https://tex.stackexchange.com/landing/r/digest?cta=user&id=48973 5 votes
6.70.1.7 Worksheets with Big Numbers

https://tex.stackexchange.com/landing/r/digest?cta=question&id=573663

I am trying to make mental math worksheets with exercises such as 
25% of 80 trillion is ___ 
It seems that pgf and/or pgfmath is not capable of doing this as the numbers are too large. The code ... 
[pgfmath]
 
asked by WeCanLearnAnything https://tex.stackexchange.com/landing/r/digest?cta=user&id=75762 6 votes
answered by Lazy squirrel https://tex.stackexchange.com/landing/r/digest?cta=user&id=230294 6 votes