8.4.1 Top new questions this week

8.4.1.1 Why is my TeX file treated as a PostScript document in arXiv submission, with error 'no tex files found'?
8.4.1.2 When ending a sentence with the period, does it matter if the period is in maths mode or not?
8.4.1.3 Horizontal alignment of row vectors inside flalign and cases environments
8.4.1.4 Draw figures with textbox along arrow
8.4.1.5 Underline for an answer
8.4.1.6 Tikz: arrows in rectangle border
8.4.1.7 Single-line musical score with text to notate prosodic rhythm
8.4.1.1 Why is my TeX file treated as a PostScript document in arXiv submission, with error 'no tex files found'?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=629928

While submitting my paper (produced using Overleaf) to arXiv, I found that the main TeX file (named ms.tex) is treated as a PostScript file. 
Then, after processing the files, I get the following line ... 
[overleaf] [arxiv]
 
asked by Richard https://tex.stackexchange.com/landing/r/digest?cta=user&id=232595 11 votes
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 26 votes
8.4.1.2 When ending a sentence with the period, does it matter if the period is in maths mode or not?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=630010

Option 1: 
The area of the disk is \[\pi r^2.\] 
Option 2: 
The area of the disk is \[\pi r^2\text{.} \] 
Do they produce exactly the same result? If not, is the second option more "standard" ... 
[math-mode] [formatting] [punctuation]
 
asked by Zuriel https://tex.stackexchange.com/landing/r/digest?cta=user&id=66850 10 votes
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 11 votes
8.4.1.3 Horizontal alignment of row vectors inside flalign and cases environments

https://tex.stackexchange.com/landing/r/digest?cta=question&id=630204

I wrote this code 
\begin{flalign*} 
t\hphantom{^{\prime}}&= 
\begin{cases} 
\begin{pmatrix} 1 & 2 & ... & \frac{p}{2} & \frac{p}{2}+1 & ... & p \end{... 
[math-mode] [horizontal-alignment] [matrices]
 
asked by Uppermost https://tex.stackexchange.com/landing/r/digest?cta=user&id=261495 8 votes
answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 6 votes
8.4.1.4 Draw figures with textbox along arrow

https://tex.stackexchange.com/landing/r/digest?cta=question&id=630007

For this figure, I am using Word and Mathtype to draw but the output is not so nice. How can I draw in in LaTeX? I am just new to package TikZ but I guess that it's power can help me here? 
[tikz-pgf] [arrows]
 
asked by TrungDung https://tex.stackexchange.com/landing/r/digest?cta=user&id=184408 8 votes
answered by TobiBS https://tex.stackexchange.com/landing/r/digest?cta=user&id=156791 11 votes
8.4.1.5 Underline for an answer

https://tex.stackexchange.com/landing/r/digest?cta=question&id=630249

In Japan, it is very common to underline an answer in a math exam sheet with this: 
(Usual underline plus two slashes at the end.) Can I find a macro for this in some package? If not, do I have to ... 
[tikz-pgf] [underline]
 
asked by Taro https://tex.stackexchange.com/landing/r/digest?cta=user&id=260740 7 votes
answered by Juan CastaA~+-o https://tex.stackexchange.com/landing/r/digest?cta=user&id=231368 8 votes
8.4.1.6 Tikz: arrows in rectangle border

https://tex.stackexchange.com/landing/r/digest?cta=question&id=630334

How can I put arrows in the dashed rectangle borders like the picture above? Thanks 
I have this code: 
\documentclass{standalone} 
\usepackage{tikz} 
\usetikzlibrary{shapes.geometric} 
\usetikzlibrary{... 
[tikz-pgf] [tikz-arrows]
 
asked by FA~\[DownExclamation]bio GregA~\263riohttps://tex.stackexchange.com/landing/r/digest?cta=user&id=240205 7 votes
answered by polyn https://tex.stackexchange.com/landing/r/digest?cta=user&id=186244 5 votes
8.4.1.7 Single-line musical score with text to notate prosodic rhythm

https://tex.stackexchange.com/landing/r/digest?cta=question&id=630207

How can I have a single line musical score only to notate the quantity of each note and pauses? I've looked into some packages, but most of them only type entire traditional 5 lines score; I also ... 
[symbols] [music] [musixtex] [lilypond]
 
asked by Rhythmical Diphthong https://tex.stackexchange.com/landing/r/digest?cta=user&id=261497 7 votes
answered by Ignasi https://tex.stackexchange.com/landing/r/digest?cta=user&id=1952 3 votes