Review of Matrix Multiplication

Text-only	Table of Contents (frame/ no frame)
(7) Review of Matrix Multiplication

Rules of Matrix Multiplication

Inner dimensions must be the same
Dimension of resulting matrix are outer most dimensions of two multiplied matrices
Resulting elements are the dot product of the rows of first matrix with the columns of the second

Try:
>> a = [ 1 2 3; 4 5 6] a = 1 2 3 4 5 6 >> b= ones (3,3) b = 1 1 1 1 1 1 1 1 1 >> c= a*b c = 6 6 6 15 15 15

Review_of_Matrix_Multiplication.src last modified Sep 29, 2009

Table of Contents
(frame/no frame)