10.35.3 Can you answer these questions?

10.35.3.1 \NewDocumentCommand with TikZ calc library

https://tex.stackexchange.com/landing/r/digest?cta=question&id=718118

recently I was doing a lot of various diagrams and found myself experimenting with the \newcommand to define labels and "variables". As such I wanted to expand and experiment with commands ... 
[tikz-pgf] [tikz-calc]
 

asked by jr.root.cs https://tex.stackexchange.com/landing/r/digest?cta=user&id=99554 Score of 1

10.35.3.2 TeXstudio arara magic comment is not recognized

https://tex.stackexchange.com/landing/r/digest?cta=question&id=718163

Why does the following document 
% !TeX program = txs:///arara 
% arara: lualatex: {synctex: on, interaction: nonstopmode, shell: yes} 
\documentclass{article} 
\begin{document} 
Hello 
\end{document} 
... 
[texstudio] [windows] [arara]
 

asked by Diaa https://tex.stackexchange.com/landing/r/digest?cta=user&id=2288 Score of 1

10.35.3.3 Correct numbering of Figures and Equations when Using 'Parts' and 'chapters'

https://tex.stackexchange.com/landing/r/digest?cta=question&id=718388

I am currently writing my thesis. I have formatted it by having several 'parts' and within that 'chapters'. At the beginning of the 'part' I give an overview of the coming chapters. I include a couple ... 
[table-of-contents] [chapters] [parts] [equation-number]
 

asked by I Shand https://tex.stackexchange.com/landing/r/digest?cta=user&id=99636 Score of 1

answered by John Kormylo https://tex.stackexchange.com/landing/r/digest?cta=user&id=34505 Score of 0