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.




EVAL
=LAMBDA(s, EVALUATE(s))
 
 
matrix
={1,2,3;4,5,6;7,8,9}