5.16.1 Top new questions this week

5.16.1.1 tikz: not so precise graphic
5.16.1.2 What is the purpose of : in math mode?
5.16.1.3 How do employ ' ("prime") in math mode at the correct depth?
5.16.1.4 I've given up, missing $ error. Help?
5.16.1.5 Mark command as obsolete
5.16.1.6 How to make the table in the figure in LaTeX?
5.16.1.7 How can I make dummy text (like \lipsum) grey?
5.16.1.1 tikz: not so precise graphic

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=490311

Do you see the point (0.78951,1.38506) is slightly below the previous one, while it should be above? 
\documentclass{standalone} 
\usepackage[T1]{fontenc} 
\usepackage[utf8]{inputenc} 
... 
[tikz-pgf]
 
asked by user3204810 https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=105478 13 votes
answered by quark67 https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=132405 22 votes
5.16.1.2 What is the purpose of : in math mode?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=491080

What is the purpose of $:$? 
We know that in math mode one should write in natural language and not being so strict with math notation. 
For example: $f:A\to B$ is not "correct", the correct way would  ... 
[math-mode] [punctuation]
 
asked by manooooh https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=152550 11 votes
answered by Henri Menke https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=10995 10 votes
5.16.1.3 How do employ ' ("prime") in math mode at the correct depth?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=490506

How does one use the ' symbol ("apostrophe") in math mode without letting it change the depth of subscripts? 
For example the following tex code: 
\[ 
\int_{G^d} \varphi_{\ul,\ui} \varphi_{\ul',\ui'}  ... 
[math-mode] [subscripts]
 
asked by Christian.gruener https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=188767 11 votes
answered by Boris https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=5522 13 votes
5.16.1.4 I've given up, missing $ error. Help?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=490749

A subset $C$ is \emph{closed} \iff \emph{ $i\in C, i\to j$ \implies $j$ \in $C$ } \\ 
Overleaf shows this where the error is. I've used my brain to find the error but no progress. Error is -  ... 
[math-mode] [symbols]
 
asked by never_mind https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=182890 10 votes
answered by Mico https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=5001 14 votes
5.16.1.5 Mark command as obsolete

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=490620

Is it possible to declare some command inside a package as obsolete?  I work on a package and want to inform users that in the next version of the package this commands will be deleted.  What kind of  ... 
[packages] [programming]
 
asked by Konstantin Morenko https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=119485 9 votes
answered by freddy https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=188809 7 votes
5.16.1.6 How to make the table in the figure in LaTeX?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=490166

\begin{center} 
\begin{tabular}{ c c c c c} 
$0$ & $c_2$ & $c_3$ & \ldots & $c_M$ \\ 
$e_2$ & $c_2+e_2$ & $c_3+e_2$ & \ldots& $c_M+e_2$ \\ 
$e_3$ & $c_2+e_3$  ... 
[tables]
                                                                                  

                                                                                  
 
asked by JSN https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=188000 8 votes
answered by JouleV https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=156344 17 votes
5.16.1.7 How can I make dummy text (like \lipsum) grey?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=490992

I would like to make my dummy text more distinguishable from the normal text, so I can better determine the progress by making it for example grey? 
Can I adjust the \lipsum command, so it applies  ... 
[color] [overleaf] [lipsum]
 
asked by Leon D https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=153820 7 votes
answered by Phelype Oleinik https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=134574 7 votes