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Signal Operations: Combined Operations

Signal Operations: Time Shifting

Signal Operations on Dependent Variables

Signal Operations: Time Scaling

Signal Operations: Time Reversal

Signals and Systems Definitions

Simply-Defined and Piecewise-Defined Signals

Continuous-Time Deterministic and Random Signals

Sums of Periodic Signals Example

Continuous-Time Conjugate Symmetric Signals

Continuous-Time Periodic and Non-Periodic Signals

Continuous-Time Even and Odd Signals

Even and Odd Signal Properties With Proofs

Analog and Digital Signal Definitions

Continuous-Time vs. Discrete-Time Signals

Orthogonal Projection of Vectors

Representing Vectors with an Orthogonal Basis

Orthogonal Sets of Vectors

Orthogonal Complements

Finding Orthogonal Vectors in R3

Finding Orthogonal Vectors in R2

The Parallelogram Law

Dot Product and Norm Examples

Definition of Orthogonal Vectors