What is the matrix multiplication of these two vectors?

A=[ 1 1 1 4 5] and B=[1 2 3 4 5]

Answer 1

[Todd Leonhardt]

To do matrix multiplication the inner dimensions must agree. Both of your matrices are 1x5 vectors. You can do either of the following:

A' * B (results in a 5x5 matrix)

or

A * B' (results in a 1x1 scalar)

[Bella]

so would it be [25 16 3 2 1] ?

Answer 2

[Azzi Abdelmalek]

A.*B