Getting Started: Systems Of Linear Equations - Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book

6. Press Í to store the matrix to
In the matrix editor (y Q), you can see that
matrix has dimension 2x2.
[C]
You can press ~ ~ to display the
then select to edit it.
[C]

Getting Started: Systems of Linear Equations

Getting Started is a fast-paced introduction. Read the chapter for details.
Find the solution of X + 2Y + 3Z = 3 and 2X + 3Y + 4Z = 3. On the TI-84 Plus, you can solve a
system of linear equations by entering the coefficients as elements in a matrix, and then using
to obtain the reduced row-echelon form.
1. Press y . Press ~ ~ to display the
menu. Press
MATRX EDIT
Í Í to define a 2×4 matrix. The
2. Press
2 4
rectangular cursor indicates the current element.
Ellipses ( ) indicate additional columns beyond
...
the screen.
Í to enter the first element. The
3. Press
1
rectangular cursor moves to the second column of
the first row.
.
[C]
screen and
EDIT
to select .
1 1: [A]
Chapter 10: Matrices
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