# Printable TI-83 & TI-84 Calculator Steps for Matrices Subject
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This printable give step-by-step instructions on using the TI-83 or TI-84 for Matrices. I would have my students tape this into their notes. Great to help teach them how to check their work. Also great if they learn these steps for ACT and SAT. Below is what calculator steps are covered:

• To Enter in a Matrix
• To Find the Determinant after you have entered in your matrix
• To Find the Inverse after you have entered in your matrix
• To Multiply Two Matrices after you have entered both in your calculator
• To Multiply [A]-1[B] after you have entered both [A] & [B] in your calculator
Find the inverse of a matrix if it exists and use it to solve systems of linear equations (using technology for matrices of dimension 3 × 3 or greater).
Represent a system of linear equations as a single matrix equation in a vector variable.
Work with 2 × 2 matrices as transformations of the plane, and interpret the absolute value of the determinant in terms of area.
Understand that the zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1 in the real numbers. The determinant of a square matrix is nonzero if and only if the matrix has a multiplicative inverse.
Understand that, unlike multiplication of numbers, matrix multiplication for square matrices is not a commutative operation, but still satisfies the associative and distributive properties.
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1 page
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