This chapter introduces the Fourier series representation of discrete time periodic functions. We represent discrete time periodic functions in a Hilbert space spanned by the orthogonal harmonically ...
This chapter introduces the basic building blocks of signals, which have well‐defined analytical forms, namely exponential functions, unit step functions, and unit impulse functions. We introduce both ...
In this paper we derive the explicit, closed-form, recursion-free formulae for the arbitrary-order Fréchet derivatives of the exponential and logarithmic functions in unital Banach algebras (complex ...
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