0 | refreshing basics

Question 1

Multiplying matrices and vectors

we need to view the vector as a ______ matrix

Answer 1

column

Question 2

Multiplying matrices and vectors

matrix A, vector x

We define the matrix-vector product only for the case when the number of _______ in A equals the number of _________ in x.

Answer 2

columns in A
rows in x

Question 3

What does this mean:

⊆

Answer 3

is a subset of
(the two subsets in question may be equal)

Question 4

What does this mean:

⊂

Answer 4

is a proper subset of
(the two sets in question are not equal)