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Function: polgraeffe Section: polynomials C-Name: polgraeffe Prototype: G Help: polgraeffe(f): returns the Graeffe transform g of f, such that g(x^2) = f(x)f(-x). Doc: returns the \idx{Graeffe} transform $g$ of $f$, such that $g(x^2) = f(x) f(-x)$.