| A | B |
|---|
| Coefficient Matrix | The matrix formed by the coefficients in a linear system of equations. |
| Cramer’s Rule | A method for solving a linear system of equations using determinants. |
| Determinant of a Matrix | A single number obtained from a matrix that reveals a variety of the matrix's properties. |
| Element of a Matrix | One of the entries in a matrix. The address of an element is given by listing the row number then the column number. |
| Identity Matrix | A square matrix which has a 1 for each element on the main diagonal and 0 for all other elements. |
| Inverse of a Matrix | For a square matrix A, written A-1. When A is multiplied by A-1 the result is the identity matrix. |
| Matrix | A rectangular (or square) array of numbers. |
| Matrix Multiplication | an operation of matrices where each element in a row of the first matrix is multiplied by each element in a column of a second matrix and the results added together. |
| Scalar | a real number by which you multiply a matrix. |
| Scalar Multiplication | the process of multiplying each entry in a matrix by a scalar. |
