Linear Algebra Review Flashcards
1
Q
What is a vector?
A
A vector is a representation of direction.
2
Q
What is a point?
A
A point represents a position.
3
Q
How many vectors represent a plane?
A
Two vectors.
4
Q
How many vectors represent a volume?
A
Three vectors.
5
Q
What is a normalized vector?
A
The vector divided by its magnitude.
6
Q
What is dot product?
A
First element times first element, second times second, third times third.
7
Q
Dot product projection requires what?
A
For one of the vectors to be normalized.
8
Q
When is the dot product 0?
A
When the vectors are orthogonal.
9
Q
Cross product is?
A
Think hard from Mat114.
