This task is similar to:

   Matrix multiplication
   Matrix transposition


Task

Implement basic element-wise matrix-matrix and scalar-matrix operations, which can be referred to in other, higher-order tasks.

Implement:

   addition
   subtraction
   multiplication
   division
   exponentiation


Extend the task if necessary to include additional basic operations, which should not require their own specialised task.




mata
a = rnormal(5,5,0,1)
b = 2
a:+b
a:-b
a:*b
a:/b
a:^b
 
a = rnormal(5,5,0,1)
b = rnormal(5,1,0,1)
a:+b
a:-b
a:*b
a:/b
a:^b
end