8.25.3 Can you answer these questions?

8.25.3.1 Make Tree output wider?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=271225

I use Tree and what I have in the nodes is somewhat larger output (horizontally). That means the nodes are displayed with a lot of overlap. Is there a way to make the "outgoing" edges to the ... 
[trees] [magnification]
 

asked by Andreas Lauschke https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1598 Score of 1

8.25.3.2 Proper usage of Assuming statement

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=271303

I want to evaluate a command under an assumption, and thought  Assuming  was the right way to go. Suppose we want to calculate a Matrix rank. Following the second ... 
[matrix] [linear-algebra] [assumptions]
 

asked by black https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=86287 Score of 3

8.25.3.3 Computing matrices with certain condition using Mathematica

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=271170

Let A be n x n matrix.  Let $(a_{i,j})$ be the $(i,j)$-th entry of the matrix A. I want to collect all possible n x n matrices satisfying the following condition $$  ~~ (j - i \leq t)~~ then ~~(a_{i,j}... 
[matrix]
 

asked by Anantadulal paul https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=82481 Score of 1