Worcester Polytechnic Institute

The Vector – Signal Analogy Table

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Vectors

Signals

Inner Product

(2i+3j)(7i-5j)=(7*2)+(3*-5)=-1

(dot product)

Orthogonality

Normalize

 

(length squared)

 

(energy)

Basis Set x1, x2, x3

Coordinate Computation

 

Legend

inner product

< >

time variable

t

vector

conjugate

 

 

 

 

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