14111cn2.12

14111cn2.12 - i th row of matrix A and the j th column of...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
c ± Kendra Kilmer August 18, 2011 Section 2.5 - Multiplication of Matrices How to Multiply Matrices ( C = AB ): (a) Check to see if the number of columns of matrix A is equal to the number of rows in matrix B . If this condition is satisfied, the multiplication is a valid operation. The resulting matrix C will have the same number of rows as A and the same number of columns as B . (b) Compute each entry in the resulting matrix C . The entry c ij is found by using the
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: i th row of matrix A and the j th column of matrix B as shown in the next example. Example 1: Let A = 1 2 3 4 B = 4 2 1 3 Find C where C = AB . Note: In general, AB 6 = BA Example 2: Given the following matrices with given dimensions, determine whether each of the following is a valid matrix operation. A 2 3 B 3 5 C 5 2 D 2 3 a) AB-C b) 3 AC-D c) CD-5 B T d) DA-3 C e) D-BC 12...
View Full Document

Ask a homework question - tutors are online