
Matrices  Elimination
Hi,
What is the difference between elementary row operations, Gaussian Elimination, and GaussJordan Elimination?
I am confused between these 3 concepts.
For operations on rows on augmented matrices using elem. row operations, they said:
 Multiply a row through by a nonzero constant
 Interchange 2 rows
 Add a multiple of one row to another
Their example wasn't clear to me though, so I don't understand the steps for that.

Elementary Row Operations: Gaussian Elemination
Get the idea?

Gauss Jordan
