论文部分内容阅读
本文提出以搜索有根区间为手段的求根方法:有根区间是函数值在某一阈值TH和-TH之间的值域对应的自变量区间。逐步降低阈值,若仍能搜索出对应区间,则此种区间会变窄,当窄于精度时,区间左右端点的平均值就是根。这种求根方法不必先给初值,能求出代数方程的全部实根,且求出的根精度较高。
In this paper, we propose a root-seeking method of searching for a root-bounding interval: a root-bounding interval is an independent variable interval corresponding to the range of values between the threshold TH and -TH. Gradually lower the threshold, if you can still search out the corresponding interval, then the interval will be narrowed, when narrower than the accuracy, the average of the left and right end of the interval is the root. This root method does not have to give the initial value, can find all the real roots of algebraic equations, and find the root of higher precision.