11.76.3 Can you answer these questions?

11.76.3.1 Is there a package to split tables with large number of columns over many pages?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=754525

I have square matrix numerical data whose size can vary from 4x4 to 100x100 and possibly more. If using longtable or tabularray and in landscape view, I can present 20, 30 rows at most. 
Ideally I ... 
[tables]
 

asked by bliako https://tex.stackexchange.com/landing/r/digest?cta=user&id=149345 Score of 3

11.76.3.2 Spurious vertical space after longtable

https://tex.stackexchange.com/landing/r/digest?cta=question&id=754693

In the following MWE (and in my real life documents), a spurious vertical space (about a line or 1\baselineskip tall) appears after the end of a longtable. 
I call it spurious because it only occurs ... 
[spacing] [longtable] [vspace]
                                                                                  

                                                                                  
 

asked by marquinho https://tex.stackexchange.com/landing/r/digest?cta=user&id=203961 Score of 1

11.76.3.3 Why does PGFPlots separate the axes of my log-log graph?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=754796

I'm trying to make a log-log graph. Semi-log graphs and linear graphs work just fine, but for some reason when I try to make a log-log graph PGFPlots doesn't draw the horiziontal axis or the curve. 
... 
[pgfplots]
 

asked by Rain https://tex.stackexchange.com/landing/r/digest?cta=user&id=99104 Score of 2