[PDF] [PDF] Using Matrices to Solve a System of Equations on a - MSU Billings

12 août 2002 · Solve You may want to begin by clearing all variables and equations from your calculator On the HOME Screen F1: Tools 8: Clear Home



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[PDF] Using Matrices to Solve a System of Equations on a - MSU Billings

12 août 2002 · Solve You may want to begin by clearing all variables and equations from your calculator On the HOME Screen F1: Tools 8: Clear Home



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V. Zabrocki - 1 of 2

8/12/02

Using Matrices to Solve a System of Equations on a TI-89

99z-2y-3x-2z-3y2x8zy-x

:Solve You may want to begin by clearing all variables and equations from your calculator.

On the HOME Screen

F1: Tools

8: Clear Home

Clear 2 nd

F6: Clean Up

1: Clear a - z

Enter

Diamond Y=

F1: Tools

8: Clear Functions

Enter To solve we need to name and enter the augmented matrix.

992321328111

Apps

6: Data/Matrix Editor

3: New

Type: 2 Matrix

Folder: Math (or folder of your choice)

Variable: a (or any name you want to give it)

Row dimension: 3

Col dimension: 4

Enter Fill in the numbers. When you hit enter, the cursor moves to the next space to the right in the row. At the end of the row, the cursor moves to the beginning of the next row.

V. Zabrocki - 2 of 2

8/12/02

To Solve: (Be sure your current folder is the folder in which you stored the matrix. Check the lower left hand corner to see the current folder. If that's not where you stored it, press MODE , highlight Current Folder, Arrow right and then select the correct folder. Press

Enter to save the change.

HOME rref(a) (You can key in this command or do Catalog then scroll down to rref( then Enter) Enter

This gives the reduced row echelon form.

The solution is

1z3y4x

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