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On the Evaluation of Polynomial Coefficients

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Abstract

The evaluation of the coefficients of a polynomial from its zeros is considered. We show that when the evaluation is carried out by the standard algorithm in finite precision arithmetic, the accuracy of the computed coefficients depends on the order in which the zeros are introduced. An ordering that enhances the accuracy for many polynomials is presented.

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Calvetti, D., Reichel, L. On the Evaluation of Polynomial Coefficients. Numerical Algorithms 33, 153–161 (2003). https://doi.org/10.1023/A:1025555803588

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  • DOI: https://doi.org/10.1023/A:1025555803588

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