## Operations on vectors, Electrical Engineering

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Can add vectors using the parallelogram rule

Can multiply a vector by a scalar

- result is a parallel vector

• length is scaled

• direction unchanged

• example: multiply particle's velocity vector by its mass, gives particle's momentum vector

Can combine two vectors using:

- Scalar product (also called dot product or inner product

- Vector product (also called cross product)

Can multiply a vector by a matrix

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