Download presentation

Presentation is loading. Please wait.

Published byJesse McElroy Modified over 3 years ago

1
2.3 Modeling Real World Data with Matrices

2
Matrix – a rectangular array or terms called elements. Matrix – a rectangular array or terms called elements. Elements are arranged in rows and columns and enclosed by brackets. Elements are arranged in rows and columns and enclosed by brackets. A matrix with m rows and n columns is an m x n matrix. A matrix with m rows and n columns is an m x n matrix. The dimensions of the matrix and m and n. The dimensions of the matrix and m and n. Named using a capital letter. Named using a capital letter.

3
Two matrices are equal if and only if they have the same dimensions and are identical, element by element. Ex 2

4
Addition – can add if same size Ex 3

5
Additive Identity – for every matrix A, another matrix can be found so that their sum is A.

6
Ex 4 Fins S – T.

7
Scalar multiplication – multiply each element of the matrix by the scalar. Ex 5Find 4A if A=

8
Matrix multiplication – the product of an m x n matrix and an n x r matrix is an m x r matrix. Ex 6 Ex 6 Find AB Find AB Find BC Find BC

9
Ex 7

Similar presentations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google