TI 84 Matrix Calculator Online Guide
Matrix operations are common in algebra, pre-calculus and systems of equations. This guide shows the basic TI-84-style workflow.
Enter a matrix
Open the matrix editor, choose a matrix name such as [A], set its dimensions and enter each value.
Multiply matrices
Matrix multiplication requires compatible dimensions. For A×B, the columns of A must match the rows of B.
Find an inverse matrix
Use the inverse command only for square matrices that have a valid inverse.
Solve systems
Matrices can help solve systems of linear equations using row operations or inverse matrices.