Education Technology

Solution 33951: Calculating the Row Echelon Form of a Matrix Using the TI-36X Pro.

How do I calculate the row echelon form of a matrix using the TI-36X Pro?

Example: Find the Row Echelon Form of matrix A.

To enter the matrix:

1) Press [2nd] [matrix].
2) Scroll over to Edit and press [enter] to select matrix A.
3) Select 3 for ROWS and 3 for COLUMNS and scroll to OK and press [enter].
4) Input the matrix entries, pressing enter after each entry. For example, [3] [enter] [(-)] [1] [enter] [5] [enter] [(-)] [2] [enter] [4] [enter] [6] [enter]. 
5) Exit the matrix editor by selecting [2nd] [quit].

To find the row echelon form using the ref( function:

1) Press [2nd] [matrix].
2) Scroll to MATH and scroll down to 4: ref reduced and press [enter].
3) Press [2nd] [matrix].
4) Press 1: [A] 2x3.
5) Press [enter] to display the answer.

Please see the TI-36X Pro guidebook for additional information.