9.26.3 Can you answer these questions?

9.26.3.1 Operations on symbolic tensors

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=288296

I have recently discovered the set of functions related to symbolic tensors, namely  TensorProduct ,  TensorContract , ... 
[symbolic] [tensors]
 

asked by enzotib https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1915 Score of 1

9.26.3.2 Make a recursive function for computing a matrix faster

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=288317

I have a function below called  inverseKostkaHelper  (see belos) which 
I want to make faster. 
It takes two integer partitions as arguments, (both with the same total ... 
[performance-tuning] [compile]
 

asked by Per Alexandersson https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=488 Score of 1

9.26.3.3 Plotting diagram of complex equation

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=288352

I have this equation: 
 q1[t_] := -I**Sin[] + ((*Cos[])/n^2)*(I*[t]*y+z*[t]) 
 
and the main code is the following with the definition of each parameters: 
... 
[plotting] [equation-solving] [calculus-and-analysis] [complex] [code-review]
 

asked by Ali Taher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=90337 Score of 2