9. Vectors and Matrices Flashcards
1
Q
vectors definition
A
- magnitud with direction
- line segments
2
Q
scalar definition
A
any quanitity
3
Q
position vectors
A
- starts at origin
- lowercase underlined
4
Q
location vectors
A
- distance between two points
- TWO letters
- arrow above
5
Q
components
A
row vectors and column vectors
6
Q
midpoint of a vector
A
7
Q
addition subtraction of a vector
A
8
Q
magnitud of a vector
A
9
Q
unit vector
A
10
Q
scalar product / dot product
A
A•B= |A||B|cos θ
1. A•B = (i•i)+(j•j)+(k•k) = #
2. |A|= _/i^2 + j^2 +k^2
- conditions: answered in radians
11
Q
matriz multiplication
A
- to be possible
columns x rows
12
Q
determinant
A
13
Q
Inverse vector
A
