8.78.3 Can you answer these questions?

8.78.3.1 How to create vertically typeset sections in a horizontally typed document in LuaLaTex for CJKV languages?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=667353

How would I go about creating vertical Chinese/Japanese sections (perhaps boxed) in a horizontally typed document. 
Something like the Kanbun sections in this documentation:https://mirror.ox.ac.uk/... 
[luatex] [cjk]
 

asked by Alex miao https://tex.stackexchange.com/landing/r/digest?cta=user&id=280351 Score of 1

8.78.3.2 Unexpected behavior of atan2() function with pgfplots

https://tex.stackexchange.com/landing/r/digest?cta=question&id=667498

Hi I'd like to draw some Bode-like plots, 
the atan2() function seems to not work correctly at some combination of values. 
I managed to re-create the minimal working code to show the problem: 
I am ... 
[pgfplots] [plot] [atan2]
                                                                                  

                                                                                  
 

asked by cinni93 https://tex.stackexchange.com/landing/r/digest?cta=user&id=286194 Score of 1

8.78.3.3 Aligning mantissa-less numbers in tables with siunitx

https://tex.stackexchange.com/landing/r/digest?cta=question&id=667089

Tabular content can be nicely aligned, but I can't get numbers without mantissa (in scientific notation) aligned with the rest: 
\documentclass{article} 
\usepackage{booktabs,siunitx} 
\sisetup{print-... 
[tables] [siunitx]
 

asked by Jellby https://tex.stackexchange.com/landing/r/digest?cta=user&id=15647 Score of 2

answered by Joseph Wright https://tex.stackexchange.com/landing/r/digest?cta=user&id=73 Score of 0