9.44.1 Top new questions this week

9.44.1.1 \varnothing no different from \emptyset
9.44.1.2 TeXbook Exercise 14.32
9.44.1.3 Overline leads to inconsistent positions of superscript
9.44.1.4 Is it possible to fill the second column with a grid automatically?
9.44.1.5 Is there a way to visualize SyncTeX anchors in the PDF?
9.44.1.6 Vertical timeline with certain pictures at each line
9.44.1.7 Special characters (such as A~(c), A~\[Section], A~\274) in .bib file using citation-style-language
9.44.1.1 \varnothing no different from \emptyset

https://tex.stackexchange.com/landing/r/digest?cta=question&id=690048

I don't understand why \varnothing looks exactly the same than \emptyset in this MWE: 
\documentclass[10pt,a4paper,french]{article} 
\usepackage{babel} 
\usepackage{amssymb} 
\usepackage{mathtools} 
\... 
[amssymb]
 
asked by Didier https://tex.stackexchange.com/landing/r/digest?cta=user&id=249670 Score of 7
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 7
9.44.1.2 TeXbook Exercise 14.32

https://tex.stackexchange.com/landing/r/digest?cta=question&id=690041

In the end of Chapter14 of TeXbook, there is a macro called \signed: 
\def\signed #1 (#2){{\unskip\nobreak\hfil\penalty50 
\hskip2em\hbox{}\nobreak\hfil\sl#1\/ \rm(#2) 
\parfillskip=0pt \... 
[tex-core] [hyphenation] [plain-tex]
 
asked by Stephen https://tex.stackexchange.com/landing/r/digest?cta=user&id=241621 Score of 6
answered by LdBeth https://tex.stackexchange.com/landing/r/digest?cta=user&id=246082 Score of 7
9.44.1.3 Overline leads to inconsistent positions of superscript

https://tex.stackexchange.com/landing/r/digest?cta=question&id=690010

I am looking to write this simple product of two powers of complex numbers, but the difference in positioning of the powers in the conjugated and non-conjugated cases bothers me. The potential \... 
[math-mode] [spacing] [horizontal-alignment] [vertical-alignment]
 
asked by David https://tex.stackexchange.com/landing/r/digest?cta=user&id=299928 Score of 6
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 4
9.44.1.4 Is it possible to fill the second column with a grid automatically?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=689855

This is a follow-up of Is it possible to fill the second column with something automatically? 
I would like to (automatically) reach the following result (fill in the second column with a grid): 
\... 
[tikz-pgf] [tcolorbox] [multicol]
 
asked by CarLaTeX https://tex.stackexchange.com/landing/r/digest?cta=user&id=101651 Score of 6
answered by Ignasi https://tex.stackexchange.com/landing/r/digest?cta=user&id=1952 Score of 6
9.44.1.5 Is there a way to visualize SyncTeX anchors in the PDF?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=690221

Forward and reverse synchronization between the TeX source and the PDF output using SyncTeX is an immensely useful tool when writing larger documents. Sometimes, especially when the synchronization is ... 
[viewers] [forward-inverse-search]
 
asked by schtandard https://tex.stackexchange.com/landing/r/digest?cta=user&id=48973 Score of 5
9.44.1.6 Vertical timeline with certain pictures at each line

https://tex.stackexchange.com/landing/r/digest?cta=question&id=690192

I am preparing some slides in which I used this post. Here it is: 
\documentclass{beamer} 
\usepackage{charter} 
\usepackage{environ} 
\usepackage{tikz} 
\usetikzlibrary{calc,matrix} 
\... 
[beamer] [timeline]
 
asked by Mikasa https://tex.stackexchange.com/landing/r/digest?cta=user&id=59624 Score of 5
answered by samcarter_is_at_topanswers.xyz https://tex.stackexchange.com/landing/r/digest?cta=user&id=36296 Score of 4
9.44.1.7 Special characters (such as A~(c), A~\[Section], A~\274) in .bib file using citation-style-language

https://tex.stackexchange.com/landing/r/digest?cta=question&id=690172

I am using citation-style-language package on Overleaf with Luatex to cite references as follows: 
\documentclass{article} 
\usepackage{citation-style-language} 
\cslsetup{style=vancouver} 
\... 
[bibliographies] [csl]
 
asked by xerroxcopy https://tex.stackexchange.com/landing/r/digest?cta=user&id=298602 Score of 5
answered by Zeping Lee https://tex.stackexchange.com/landing/r/digest?cta=user&id=82731 Score of 6