8.16.3 Can you answer these questions?

8.16.3.1 nested newcommand to create randomized test
8.16.3.2 How to use int or floor to compute coordinates
8.16.3.3 How to hide a solution in xsim for the student book and display all solutions for the teacher book
8.16.3.1 nested newcommand to create randomized test

https://tex.stackexchange.com/landing/r/digest?cta=question&id=635812

Ok, so I have basically learned LaTex by reading some package manuals and finding answers to specific questions on this site.  I have been creating randomized versions of written math exams using the ... 
[macros] [random]
 
asked by LNBowman https://tex.stackexchange.com/landing/r/digest?cta=user&id=264659 Score of 1
answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 0
8.16.3.2 How to use int or floor to compute coordinates

https://tex.stackexchange.com/landing/r/digest?cta=question&id=636174

I want to illustrate the approximation of the volume under a surface with a double Riemann sum. I am drawing 3d boxes over a 6x6 rectangular grid, from back to front, left to right (painter's ... 
[pgfplots] [3d]
 
asked by Phillip Pinon https://tex.stackexchange.com/landing/r/digest?cta=user&id=264882 Score of 1
8.16.3.3 How to hide a solution in xsim for the student book and display all solutions for the teacher book

https://tex.stackexchange.com/landing/r/digest?cta=question&id=636157

In my books there are two types of exercises. The first type has public solutions, those solutions should appear in the student's book and teacher's book. The second type has solutions that should ... 
[xsim]
 
asked by Michael.H https://tex.stackexchange.com/landing/r/digest?cta=user&id=233250 Score of 1