Organizing Data Using Matrices - Basics and Operations
Matrices are rectangular arrangements of numbers used to organize data. Learn about the basics of matrices, such as elements and sizes, and operations like addition, subtraction, and scalar multiplication. Practice problems included.
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Presentation Transcript
12-1 Organizing Data Using Matrices
Matrix: is a rectangular arrangement of numbers in rows and columns Size of Matrix: rows columns Element: Each number in a matrix
Problem 1: Adding or Subtracting Matrices Find the sum or difference: 5 2.7 7 3+ 3 3.9 2 4
Find the sum or difference: 2 11 3.2 5 1 6.5 0 8 4 4 1.5 3
Scalar: the real-number you multiply a matrix by in order to solve problems Scalar Multiplication: When you multiple a matrix by a scalar When using scalar multiplication, multiply each element in the matrix by the scalar
Problem 2: Multiplying a Matrix by a Scalar What is the product? 34 1.5 6 1
What is the Product? 2 3 7.1 5
