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Vectors
A vector is a quantity that has both direction and magnitude.
A vector is denoted by a directed line segment. The magnitude of
a vector is the length of the segment and the direction of a
vector is where the segment is pointing. Vectors are named like
segments or by small letters.
ex.
Point A is the initial point and point B is the terminal point
of the vector above.
A vector that has no magnitude but has a direction is called a
zero vector.
Vectors are equal when their magnitudes and direction are
equal.
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