8 videos in "Matrices"

Solving 2x2 matrices

Multiplying matrices featuring a TINspire

[C.13] Entering a Matrix on a graphing calculator

[C.14] Matrix Addition and Multiplication

[C.15] Matrix Inverse on a graphing calculator

[C.16] Identity Matrix

[C.17] Solving the Matrix Equation

[C.18] Using rref on a graphing calculator
[C.14] Matrix Addition and Multiplication
[C.14] Matrix Addition and Multiplication
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Part of video series PreCalculus TI Graphing Calculator Tutorials
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Learn how to add, subtract, and multiply matrices on a graphing calculator.
 How do you add, subtract, and multiply matrices on a TI graphing calculator?
 What happens if you try to add or subtract two matrices with different dimensions on a TI graphing calculator?
 How can you access matrices on a TI graphing calculator after entering them?
 What does ERR:DIM MISMATCH mean with matrices on a TI graphing calculator?
 How do you multiply a number by a matrix on a TI graphing calculator?
This lesson shows how to take matrices that you have already entered and using a TI graphing calculator to perform operations (addition, subtraction, and multiplication) on the matrices. The steps involved in these matrix operations are shown and explained. This speeds up these operations a lot compared with doing them by hand.