Eroxl's Notes
Elementary Row Operations

There are three types of elementary row operations:

  1. Row Switching
    • A row within the matrix can be switched with another row.
  2. Row Multiplication (Row Scaling)
    • Each element in a row can be multiplied by a non-zero constant.
    • , where
  3. Row Addition
    • A row can be replaced by the sum of that row and an another row.
    • , where

Examples

Given the starting matrix:

Operation Type Operation Augmented Matrix
Row Switchig
Row Multiplication
Row Addition