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Chapter 4


Dimensions m x n
Matrices they are only equal if the the "n" in the first dimensions matches the "m" in the second dimension are the same number 3 x 2 2 x 3
Point matrix 2 x 1
Scalar multiplication the product of a scalar k and a matrix A is the matrix kA in which each element is k times the corresponding element in A.
Find the product 5 [ 7 4 -1] = [35 10 -5] [ 4 9 11] [20 45 55]
Sequence Put matrics into [A] *quit* multiply [B]
Two matrics ( [2 5] [3 1 -4]) [5] [2 0 1 ] [2] [1]
Created by: sydneywisniewski