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2021-01-13 22:24:28 +0200 | asked a question | Converting multivariable polynomial with complex coefficients to a polynomial with integer coefficients If we make a polynomial involving $\sqrt{-2}$ like this we get $poly = A^2 + 2.00AB + B^2 + 2.00.$ How can this be changed into a polynomial with integer coefficients ? If we had a univariate polynomial we could do this by mapping list(poly) to a list of integers and then defining a new polynomial with those. But this approach can't be translated directly to multivariable polynomials. |