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Does MATLAB allow us to define a polynomial with unknown coeffcients?

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abc
abc 2014-2-5
编辑： Walter Roberson 2014-2-6
Hi does MATLAB allow us to define a polynomial with unknown coefficients? I know the function poly2sym where we enter the array of coefficients as an input. But if I do not have coefficients? I actually need to define two polynomials with unknown coefficients and then equate their product to 1 to find all the coefficients. I know only one of the coefficients in one of the polynomials.

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Walter Roberson
Walter Roberson 2014-2-5
编辑：Walter Roberson 2014-2-6
syms x
a = sym('a', [3 1]);
a(3)*x^2+a(2)*x+a(1)
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