A form of a Matrix, similar to Row Echelon Form but with more restrictions. The RREF of a matrix is always unique .

Definition

The reduced row echelon form (RREF) must have:

  • Already been in Row Echelon Form
  • And all leading entries must be 1
  • And all columns containing leading entries must otherwise be filled with 0’s

For example:

are all valid RREF matrices

Examples

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