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    • 2. 发明授权
    • Setup of precise polynomial evaluation by utilizing a compressed root product form
    • 通过使用压缩的根产品形式设置精确的多项式评估
    • US08332446B1
    • 2012-12-11
    • US12271663
    • 2008-11-14
    • Michael T. Everest
    • Michael T. Everest
    • G06F7/38
    • G06F7/544G06F7/483
    • Based on the root-product polynomial form, this method compresses essential information of a polynomial by transforming polynomials into a form which eliminates cancellation error, when evaluating polynomials, of one unknown, for real, complex, and quaternion, which are implemented with floating point numbers. Additional filtering methods simplify evaluation, including the elimination of extremely small and large root factors, which can cause out-of-range errors. The usual setup problem for root-product forms, that of needing potentially unlimited root precision and floating point range, is largely eliminated for real polynomials, and greatly mitigated for complex and quaternion, and other hypercomplex polynomials.
    • 基于根产品多项式形式,该方法通过将多项式变换为消除抵消误差的形式,在评估多项式时,通过浮点实现的一个未知数,实数,复数和四元数,来压缩多项式的基本信息 数字。 额外的过滤方法简化了评估,包括消除极小和大的根系因素,这可能导致超出范围的误差。 根本产品形式的常见设置问题,需要潜在的无限根精度和浮点范围的设置问题,在实际多项式中大部分被消除,并且对于复数和四元数以及其他超复杂多项式而言大大减轻。