Reference Topics 16-4

This is an interactive site discussing matrix operations:

This is an interactive site finding inverse matrices:

This is a nice matrix operation site which also includes Gauss-Jordan elimination: the whole entry

Section 16.3: Matrix Solution of a System of Equations

16.3 Outline

  1. Definition of a matrix
    1. subscripts
    2. double subscripts
    3. array
    4. matrix
    5. rows and columns
    6. square matrix
    7. order/dimension
  2. Matrix form of a system of equations
    1. augmented matrix
    2. diagonal form
  3. Elementary row operations and pivoting
    1. elementary row operations
    2. equivalent matrices
    3. elementary row
See the whole entry