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,  [enter] [(-)]  [enter]  [enter] [(-)]  [enter]  [enter]  [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.
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