8.18.1 Top new questions this week

8.18.1.1 How can I create custom accents?
8.18.1.2 Efficient way to draw cracks in TikZ?
8.18.1.3 Biblatex: Remove 'and' before last author BUT leave it if there are only two authors
8.18.1.4 How to use the \emph or \textit in LuaLaTeX?
8.18.1.5 Is there a way to draw the rest of a path by mirroring the existing part?
8.18.1.6 Displaying a Numbered Math Expression Without Creating a New Line
8.18.1.7 Writing power for a log
8.18.1.1 How can I create custom accents?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=636853

I need to make number accents above and below like this: 
How can I do it? 
[accents] [number]
 
asked by hellohi https://tex.stackexchange.com/landing/r/digest?cta=user&id=265257 Score of 12
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 8
8.18.1.2 Efficient way to draw cracks in TikZ?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=636881

How do I draw cracks effectively in TikZ like those shown below? 
Drawing cracks with --++ and angles and length like the way I did in the MWE seems too cumbersome. There must be some better way? ... 
[tikz-pgf]
 
asked by SolidMark https://tex.stackexchange.com/landing/r/digest?cta=user&id=242742 Score of 11
answered by Paul Gaborit https://tex.stackexchange.com/landing/r/digest?cta=user&id=14500 Score of 15
8.18.1.3 Biblatex: Remove 'and' before last author BUT leave it if there are only two authors

https://tex.stackexchange.com/landing/r/digest?cta=question&id=636780

For university I have to use a certain format for my references: 
(1) If there are only two authors I have to write 'and' between them (I got this), 
(2) but if there are three or more authors I have to ... 
[biblatex] [bibliographies] [formatting] [author] [bibliographystyle]
                                                                                  

                                                                                  
 
asked by JAsch https://tex.stackexchange.com/landing/r/digest?cta=user&id=265208 Score of 8
answered by gusbrs https://tex.stackexchange.com/landing/r/digest?cta=user&id=105447 Score of 8
8.18.1.4 How to use the \emph or \textit in LuaLaTeX?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=636975

%!TeX lualatex 
\documentclass[a4paper,14pt]{extbook} % to be able to print 14pt fonts 
\pagenumbering{gobble} 
\usepackage{fontspec} 
\newfontfamily{\Termes}{TeXGyreTermes-Regular} 
\newfontfamily{\... 
[color] [luatex] [fontspec] [polyglossia] [italic]
 
asked by Lars Malmsteen https://tex.stackexchange.com/landing/r/digest?cta=user&id=244554 Score of 7
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 5
8.18.1.5 Is there a way to draw the rest of a path by mirroring the existing part?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=637119

Here is a simple path, which has a symmetry: 
\begin{document} 
\begin{tikzpicture} 
\draw[thick] (0,0) -- ++(-9,0) -- ++(5,3) -- ++(2,7) -- ++(2,0); 
\draw[green,thick] (0,10) -- ++(2,0) -- ++(2,-7) -- +... 
[tikz-pgf] [paths]
 
asked by TobiBS https://tex.stackexchange.com/landing/r/digest?cta=user&id=156791 Score of 6
answered by hpekristiansen https://tex.stackexchange.com/landing/r/digest?cta=user&id=8650 Score of 9
8.18.1.6 Displaying a Numbered Math Expression Without Creating a New Line

https://tex.stackexchange.com/landing/r/digest?cta=question&id=637238

I want to display a numbered math expression without creating a new line. Example: 
\textbf{Claim}: 
\begin{equation}\label{fpreservesorder} 
m,n\in{}\mathbb{Z}\,\,\,\wedge{}\,\,\,... 
[spacing] [equations] [line-breaking]
 
asked by Gary https://tex.stackexchange.com/landing/r/digest?cta=user&id=265136 Score of 5
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 4
8.18.1.7 Writing power for a log

https://tex.stackexchange.com/landing/r/digest?cta=question&id=636913

I want to express (\ln{(x)})^4 as \ln^4{(x)} but the power takes up too much space between ln and x. How should it be written? 
[math-mode] [amsmath]
 
asked by deanstreet https://tex.stackexchange.com/landing/r/digest?cta=user&id=265287 Score of 5
answered by Enevevet https://tex.stackexchange.com/landing/r/digest?cta=user&id=204085 Score of 5