Question 1:
How would i add or subtract multiarray given the fact that i don't know the dimension of it...

Like its N dimension where N = 4.

and u know both Multi_array A and Multi_Array B has [x][y][z][w] dimension and u want to add them together.

Question 2: are there any built in operator for that...the built in + only does pointers address not adding actual object together.