1
$\begingroup$

I'm slightly confused by the definition of row echelon form. For example, is this matrix considered to be in row echelon form?

$$\begin{pmatrix} 1 & 2 & 5 & 8 \\ 0 & 0 & 1 & 3 \\ 0 & 0 & 0 & 1 \\ \end{pmatrix}$$

  • 0
    This is a good question. Many people talk about row reduced echelon form, but it is not clear when exactly we can consider a matrix in RREF for all cases.2015-06-02
  • 0
    There's here also a good explanation: http://stattrek.com/matrix-algebra/echelon-form.aspx2015-06-02

1 Answers 1