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How to compute a particular equation in matlab

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sakshi ahuja
sakshi ahuja 2016-3-28
回答： Walter Roberson 2016-3-29
I have to evaluate h1(n) using F0. For this i am having an equation such as:
h1(n)=(-1)^n*F0(N1-n);
n= 9 and N1 is an odd delay.
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Walter Roberson
Walter Roberson 2016-3-28
If it is a variable then it would have a finite length and so would have finite indices, but the above appears to be defining a recurrence formula. It would make more sense if F0 is a function, or if there should be a multiplication between F0 and what follows. On the other hand, the user gives n as if it is fixed, which would not make sense for a recurrence formula...
sakshi ahuja
sakshi ahuja 2016-3-29
F0 is my low pass filter having 9 coeffciients. F0=[-1.9476,0.9267,-0.7980,0.3895,-1.2836,0.7734,-0.4293,0.1318]

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Walter Roberson
Walter Roberson 2016-3-29
h1 = @(n) (-1).^n .* F0(N1-n);

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