Calculate maths polynomial roots, maximum and minimum and points of inflection.
Multiple roots, maximum and minimum or points of inflection are calculated using the Durand Kerner method. This method is only valid if all roots, maximum and minimum or points of inflection are real. Use the single root calculators for polynomials with imaginary roots. The single root calculators can only calculate real roots, maximum and minimum or points of inflection. The value Xu is used as the initial guess for calculating the roots, maximum and minimum or points of inflection. Use the plot options to select suitable guess values.
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