Performing any type of mathematical operation such as addition or multiplication that requires matrices can be a an overwhelming task, particularly if you have to do every the steps without the aid of a calculator. Fortunately, her graphing calculator can solve your matrix math troubles in seconds, whether you are adding or multiply matrices or simply trying to resolve the station of a matrix. Keep analysis to learn how to job-related with matrices on her TI-83 or TI-84 graphing calculator.

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Defining her Matrix

The an initial step come working through matrices on her graphing calculator is to specify the dimensions and the worths in the matrix.

Starting from your graphing calculator’s home screen, press second x-1. This selects the matrix menu. Friend will watch a perform of letters similar to the display below:


Navigate making use of the ◀ or ▶ buttons to choose the modify option and then press ENTER. This permits you come specify the contents of her matrix.

Pressing the ▲ or ▼, choose the letter corresponding to the matrix you desire to use, because that this example, climate press enter once more.
For functions of this example, we’re walk to produce a basic 2 x 2 matrix. Making use of the arrows keys to navigate, push 2 adhered to by one more 2. Currently you can get in the worths for her matrix. Enter the following sequence the numbers, pressing get in after keying each number: 1, 2, 3, 1. Her matrix should look like this following when the is finished:


We’re going come go through the same actions again, other than instead of picking Matrix , we’re going to choose Matrix , point out it as a 2 x 2 matrix, and entering the following sequence of numbers: 2, 1, 1, 2. Press 2nd Del to go back to the home display screen once you’re finished.

Matrix addition on her Graphing Calculator

Now that you have produced your matrices, now you have the right to work through them on her graphing calculator. For functions of this example, we are going to include the two matrices and also together.

Press 2nd x-1 to select the matrix menu. Instead of going come the modify menu favor before, we’re just going to usage the ▲ or ▼ to pick , then push ENTER. This pastes come your house screen. ~ is on your screen, press the + key, then go back to the Matrix an option screen and insert .Press ENTER and the sum of and also will be presented on your calculator.


More procession Fun

Once girlfriend have created a matrix on her calculator, you deserve to manipulate and use the matrix in a number of ways. If you desire to quickly discover the inverse of a matrix, because that instance, you deserve to paste the to her home screen following the steps defined above, then push the x-1 vital followed by get in to find the station of the matrix.

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Matrix multiplication is exceptionally easy. Introduce to the example above, replace the + through a × instead and you will settle for the product the the two matrices. Experiment with different matrix combinations and see what you have the right to do v your graphing calculator.