Chapter 6: All Integer Method and Matrices

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All-Integer Echelon Method Using Macromedia Flash.

More examples showing tableaus only:

Example 1 (3 equations, 3 unknowns)

Example 2 (3 equations, 3 unknowns)

Example 3 (3 equations, 3 unknowns)

Example 4 (2 equations, 2 unknowns)

Special Cases:

Case 1: When a pivot = 0

Case 2: No Solution, Inconsistent

Case 3: Consistent, Dependent

Using Microsoft Excel with the All-Integer Method to:

Find the inverse of 3x3 matrixYou must change the security setup in your MS Excel to let the macros work.

Note 1:

Note 2:It is better if you download each file into your machine and run it from there. You can do that by:Put the mouse cursor over the link, then click on the right button.

You will get a menu, chooseSave Target AsSave the file, then open it in Excel.

Helpful Handout on Finding the Inverse Matrix

Matrix Addition and Multiplication