end
Returns the last index of the collection being indexed.
Syntax
A(end)
      
    Inputs
- A
 - scalar | string | complex number | matrix
 - B
 - Any collection that can be indexed.
 
Example
Append an element onto the end of a vector.
A = [1, 2, 3, 4]
A(end + 1) = 7
      A =  [ 1 2 3 4 7 ]