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Discrete samples into continuous signal

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May1-12, 03:46 AM
P: 2
A) Let us say that we have some arbitrary sequence of natural numbers. e.g. 1, 2, 7, 3, 17, 19. Is it possible to convert every finite and infinite sequence into some continuous function model, such as in Fourier theory?

I know that it is possible to extract some discrete samples from a continous signal/function and construct the original continuous signal, as provided by Nyquist-Shannon sampling theorem. The question is whether it is possible to construct a continuous signal that models a set of discrete samples. Can this only be approximate?

B) Can every coninuous function/signal be modelled by Fourier theory - converted into a series of sine and consine functions with unique frequencies?
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May1-12, 08:13 AM
Sci Advisor
PF Gold
P: 39,348
Use the "half integer" correction. That is, you assume that a value of "2" could be anywhere from 1 and 1/2 to 2 and 1/2.

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