Presentation on theme: "Matrices and Elementary Row Operation. Warm-up A= B="— Presentation transcript:
Matrices and Elementary Row Operation
Warm-up A= B=
Elementary Row Operations A SQUARE matrix is an elementary matrix if it is obtained from the identity matrix by a single elementary row operation. Elementary row operations: Type I: Interchange two rows. Type II: Multiply a row by a non-zero constant. Type III: Add a multiple of one row to another.
Type I Type II Type III R3 => R1 (-)R2 (-7)R3 + R1