What is the precise definition of a non-square matrix in echelon form? Say we have something like:
1, 2, 3, 4, 5, 6 | 7
2, 3, 4, 5, 6 ,7 | 8
3, 4 ,5, 6, 7, 8 | 9
How would the echelon form of that look like? Don't worry about explaining that set of equations having so and so amount of parameters and infinite solutions. I'm just wondering how the echelon form of a non-square matrix is defined.
Thx in advance.
does that rule hold for every non-square matrix though? having the last row in the matrix being zeros except for the last term and is there any restrictions to how many zeros u can have in the preceding row? in your case u have used 0 0 **** but not 0 0 0 ***, why is this?