Knowledge Base

Solution 34034: Calculating the Inverse of a Matrix Using the TI-36X Pro.

How do I calculate the inverse of a matrix using the TI-36X Pro?

Example: Calculate the Inverse of Matrix A:

Solution:
To enter the matrix:

• Press [2nd] [matrix]
• Use the [right arrow key] and scroll to EDIT
• Press [enter] to access matrix A
• Input the dimensions by selecting 2 for ROWS and 2 for COLUMNS
• Scroll to OK and press [enter]
• Input the matrix entries, pressing enter after each entry
• Exit the matrix editor by selecting [2nd] [quit]

To find the inverse:

• Press [2nd] [matrix]
• Under Names select 1:[A] 2x2 and press [enter]
• Press [2nd] [matrix]
• Scroll to MATH
• Select 3:Inverse and press [enter]
• Press [enter] again to display the answer

The answer is:

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