This document provides instructions for adding and multiplying 2x2 matrices using a TI-Nspire calculator. It outlines the keystrokes to create a 2x2 matrix shell, populate it with data, perform addition and multiplication on matrices stored as variables, and view the results.

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TI-Nspire Mini-Tutorials
Adding and Multiplying 2x2 Matrices
Summary of Keystrokes
Creating the matrix shell:
c11NEWMAT(2
,2)·
Populating the matrices:
`/C¤/V [Input matrix data.]
/V [Input matrix data.]/hB·
Operating on the matrices as variables.
A+B·
ArB·
Alv1·
ArAlv1·