Hey, I'm tryin to do some matrix work, and I can't seem to remember the details of what a pivot column of a matrix is...I know its any column that contains a leading entry, but what about the following Scenario
[1 2 0 4 5]
[0 0 5-7 8]
[0 0 0 0-9]
[0 0 0 0 0]
Now, I know the "1" in Row 1 is a pivot, as well as the "5" in row 2....but would the "-9" in the 3rd row be considered a pivot point or not...I can't remember if a right-most value can be a pivot point...
[1 2 0 4 5]
[0 0 5-7 8]
[0 0 0 0-9]
[0 0 0 0 0]
Now, I know the "1" in Row 1 is a pivot, as well as the "5" in row 2....but would the "-9" in the 3rd row be considered a pivot point or not...I can't remember if a right-most value can be a pivot point...
