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Dividing two vectors of different sizes

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Aleem Andrew
Aleem Andrew on 15 Mar 2021
Commented: Matt J on 15 Mar 2021
If you have two vectors a = [1 2 1]; b = [1 1] that represent polynomials can you divide a by b to get [1 1] as the answer, since (s^2+2s+1)/(s+1) = s+1? I know you can divide the vectors by first converting them to polynomials using poly2sym(a)/poly2sym(b) and then extract the coefficients but is there a simpler way?

Accepted Answer

Matt J
Matt J on 15 Mar 2021
Edited: Matt J on 15 Mar 2021
Yep. Just use deconv.
deconv([1,2,1],[1,1])
ans = 1×2
1 1
  3 Comments
Matt J
Matt J on 15 Mar 2021
What do you think the result should be?

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