求函数零点的线性插值补偿策略及其应用

Solving function Against by Amendment Strategy of Linear Interpolation and Its Application

闭区间上的连续函数在区间端点值异号,且在区间内单调,则在该区间内零点唯一。文中通过一种线性插值的修正算法,准确、快捷地求得函数唯一零点。该方法对初始条件适当放宽,并通过实例加以验证。

Closed interval of continuous function has opposite values of its endpoints,and monotonous in the range,then in the range has the sole function against.In this paper,to be accurate and fast to obtain the sole function against,a kind of amendment strategy by using linear interpolation is put forward,the conditions of initial discount rate can be relaxed,and verify it by an example.