How do i write a polynomial and take the derivative?

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Jose Grimaldo
Jose Grimaldo 2019-10-6
回答： Stephan 2019-10-6
I want to take the derivative of a polynomial, but Im not sure how to write the polynomial in the script T(A)=A^3 - A^2 - A -1. For the derivative do i use Polyder?

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Stephan
Stephan 2019-10-6
>> T = [1 -1 -1 -1]
T =
1 -1 -1 -1
>> dT = polyder(T)
dT =
3 -2 -1

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