why eye(3)'s and eye(3)'s row,coloumn number are equal ?

why are eye(3,3)'s and eye(3)'s row,coloumn numbers equal ? or rand(3) and rand(3,3). I wonder is it about matlab skill or computer's working principle.

Answer 1

[Sebastian Castro]

This is intended behavior. If you enter one argument, it will automatically build a square matrix.

If you're looking to do a row or column vector, then use the following syntax:

>> columnVec = zeros(3,1);
>> rowVec = zeros(1,3);

Sebastian