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Row Echelon Forms#

Definition: Row Echelon Form

A matrix \(A \in F^{m \times n}\) is in row echelon form if:

  • All rows which contain only zeroes are at the bottom;
  • The first non-zero entry of every non-zero row, called the pivot, is on the right of the pivot of every row above.

Note

A single matrix can possess more than a single row echelon form.

Example

TODO

Definition: Reduced Row Echelon Form

A matrix \(A \in F^{m \times n}\) is in reduced row echelon form if:

  • It is in row echelon form;
  • All pivots are equal to 1;
  • All entries above each pivot are zeroes.
Example

TODO