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This tutorial will show you how to enter a matrix on the TI.
 
What to Enter Screen Shots
Press 2ND then MATRIX (above the x–1 button).
Then, you will see this:
Scroll right to highlight EDIT. Then, you will see this:
Press ENTER. Then, you will see this:
Suppose that we want to enter the following 3x3 matrix:  

 
Press 3 ENTER 3 ENTER. Then, you will see this:
As you enter a number and press ENTER, the cursor advances to the next entry position. In the end, you will see this:
Scroll to bring the cursor back to the starting location.
(This step is optional.)
This step is important.

Press 2ND then QUIT (above the MODE button).

You will return to the Home Screen.
Press 2ND then MATRIX.
Then, you will see that matrix A is stored as a 3x3 matrix.
Press 1. Then, you will see this:
Press ENTER. Then, you will see this:
 
 TI
 Course Info Office Hours Exams LiveMath TI Help KU Math Dept Home
 KU Interactive Mathematics

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