1 / 5

8.2 Operations With Matrices

8.2 Operations With Matrices. Two matrices are equal if they have the same order. Matrices must be equal (of the same order) to be able to add them. For the matrices. &. Find 3A - B. Solve for X in the equation 3X + A = B, where. First, solve the equation for X.

dharrod
Download Presentation

8.2 Operations With Matrices

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 8.2 Operations With Matrices Two matrices are equal if they have the same order. Matrices must be equal (of the same order) to be able to add them. For the matrices... & Find 3A - B

  2. Solve for X in the equation 3X + A = B, where First, solve the equation for X.

  3. To find the product of two matrices, we need to do row-by- column multiplication and then add the results. For the product of two matrices to be defined, the number of columns of the first matrix must equal the number of rows of the second matrix. A B = AB m x n n x p m x p equal order of AB

  4. Example of Matrix Multiplication 2 x 3 3 x 3 What is the resulting matrix? Are these the same? 2 x 3 Start by multiplying row 1 by column 1. 1(-2) + 0(1) + 3(-1) = -5

  5. Now multiply R1 by C2 . Then R1 by C3 . 7 -1 Now multiply R2 by C1 , C2 , and C3 . What is the resulting matrix? Assignment: 1 - 9 odd, 11-27 odd

More Related