8.35.3 Can you answer these questions?

8.35.3.1 Controlling memory consumption by memoized function
8.35.3.2 Is there a fast method of clearing symbols in the sub-contexts named by other symbols?
8.35.3.3 Tensor equation problem (xact package)
8.35.3.1 Controlling memory consumption by memoized function

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=275091

To speed up a resource-intensive calculation, I use several functions with storing previously calculated values. For example: 
... 
[performance-tuning] [memory] [memoization]
 
asked by Igor Kotelnikov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=10081 Score of 2
8.35.3.2 Is there a fast method of clearing symbols in the sub-contexts named by other symbols?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=275234

When writing packages I met the following problem. The way I name helper functions is like 
... 
[packages] [contexts]
                                                                                  

                                                                                  
 
asked by yurie https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=86893 Score of 1
8.35.3.3 Tensor equation problem (xact package)

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=275042

So i want to solve the tensor equation P1[-,-]=0 with respect to A[r] and then B[r] but the problem is when hitting shift-enter the tensor given is way too long (if i press "show all" my ... 
[equation-solving] [tensors] [xact]
 
asked by Stelios https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=88702 Score of 1