INSTRUCTORS Carleen Eaton Grant Fraser

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### Basic Matrix Concepts

• A matrix is a rectangular array of variables or constants. Entries of the matrix are called elements. Dimensions refer to the number of rows and columns.

• Matrices are equal if and only if they have the same dimensions and their corresponding elements are identical.

### Basic Matrix Concepts

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

• Intro 0:00
• What is a Matrix? 0:33
• Example: Rectangular Array
• Element
• Examples: More Matrices
• Dimensions 3:40
• Examples
• Special Matrices 6:31
• (m x 1) Matrix
• Square Matrix
• Zero Matrix
• Equal Matrices 8:23
• Examples
• Lecture Example 1 10:56
• Lecture Example 2 11:28