I've tried to use Matlab's "filtfilt" function to do zero-phase filtering on my data. On the other hand, the input length has to be at least a third of the filter's order. What the heck is going on here?

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A: Requirements:-

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A: SUMMARY: - hence, we got the desired output.

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A:

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A: Here is the matlab code.

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A: Dear learner, hope you are doing well, I will try my best to answer this question. Thank You!!

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A:

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A:

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A: the answer is given below :

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Representation of Polynomial

It is necessary for the polynomial expression that each expression consists of two parts: