Matrix Elementary Row Operations

The three matrix elementary row operations (swap, scale, and add) needed in Gauss-Jordan Elimination are:
1. Switching/swapping/exchanging rows
2. Multiplying row by non-zero constant/scalar
3. Row Addition

You'll use these when solving an augmented matrix or finding the inverse of a square matrix.

0:00 Introduction
0:20 Swap/switch rows
1:08 Multiplying a row by non-zero constant/scalar
2:37 Row addition
4:17 Review of all three row operations

#matrices
#elementaryrowoperations
#guassjordan
#linearAlgebra
#JoeCMath

[JoeCMath]

The three row operations can be found at:

0:20 Swap/switch rows
1:08 Multiplying a row by non-zero constant/scalar
2:37 Row addition

Have a nice day!

[moleo]

Insanely helpful, clean, clear and to the point. Thanks a lot man

[fatimanoman]

But when interchanging row does the sign also change ?