1. Table of Contents Matrices - Definition and Notation A matrix is a rectangular array of numbers. Consider the following matrix: Matrix B has 3 rows and 4 columns, and is said to have order 3  4 (three by four). The numbers in the matrix are called entries or elements of the matrix.

2. Table of Contents Slide 2 The general form of a matrix can be written as... Each entry is denoted a ij where i represents the row of the entry and j represents the column of the entry. Matrices - Definition and Notation

3. Table of Contents Slide 3 Example: Let matrix C be given by... Matrix C has order... 5  3 or 5 rows and 3 columns. The entry a 32 is... since the row 3 column 2 entry is 6. 6 The entry a 41 is... since the row 4 column 1 entry is -3. -3 Matrices - Definition and Notation

4. Table of Contents Matrices - Definition and Notation