Dot Product

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7 Terms

1
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The angle between the two vectors is acute

The dot product is positive

2
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The two vectors are perpendicular

The dot product is 0

3
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The angle between the two vectors is obtuse

The dot product is negative

4
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u•v with points (a,b) and (c,d)

ac+bd

5
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Orthogonal or normal

Perpendicular

6
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The vectors are parallel

The dot product is |a||b| or -|a||b|

7
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u•v with magnitude and θ

|u||v|cosθ