introductions to signals & systems, signal size, signal classification

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discrete-time signals, signal symmetry, complex numbers, exponential function, signal operations

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useful signals (unite step, impulse (delta), gate)

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properties of delta function, ramp function, discrete-time signals, systems, linear systems

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system properties (linearity, time-invariance, memory, stability)

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response of LTI systems, convolution

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properties of convolution

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LTI system properties, orthogonal sets, Fourier series definition

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Fourier series expansion

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Fourier series properties

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Fourier series properties, trigonometric Fourier series

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Response of LTI systems to cosine inputs, Fourier transform definition

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