Vectors
- A vector is a mathematical quantity having both magnitude and direction.
- The zero vector: has a magnitude of 0, no defined direction. (p 286)
- Unit vector: vector with magnitude = 1
- Collinear vectors: p 296
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Opposite Vectors:
Two vectors that are opposites have the same magnitude but point in opposite
directions
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Equal vectors: vectors are equal, or equivalent, if they have the same direction and the same
magnitude
- Summary: page 278
- Representing vectors in R2 and R3
- Magnitute of a vector from A(x1, y1) to B(x2, y2)
- Multiplying a vector by a scalar
- Adding vectors - parallelogram method
- Adding vectors - cosine method
- Subtracting vectors - parallelogram method
- Subtracting vectors - cosine method
- Triangle inequality
- Summary: page 290