Question

求翻译（中译英）

摘要：对于非线性方程的求根问题，常用的方法由弦位法、抛物线法、牛顿迭代法。但牛顿法对 的要求较高, 它在求时不但要求给出函数值 ,而且要求提供导数值 . 当函数比较复杂时, 提供它的导数值往往是有困难的，而其迭代速度是较快的。但连分式法不论函数是否可导,只要在有实根的情况下只需进行基本运算操作就可以的. 具有计算复杂度小的特点。

Answer 1

Roots of nonlinear equations for the problem, commonly used method by the string-bit method, the parabola method, Newton iteration. But Newton's law of the requirements of higher demand at the time it requires not only give function values, but also to provide numerical derivative. When the function is rather complicated to provide its numerical derivative is often difficult, and its speed is a more iterative quick. However, continued fractions method regardless of whether the derivative function, as long as have real roots in the case of only basic computing operation is fine. Has a computational complexity of small features.

Answer 2

好123网面下面有"在线翻译"几个字眼,以后不会就进去查查!
Roots of nonlinear equations for the problem, commonly used method by the string-bit method, the parabola method, Newton iteration. But Newton's law of the requirements of higher demand at the time it requires not only give function values, but also to provide numerical derivative. When the function is rather complicated to provide its numerical derivative is often difficult, and its speed is a more iterative quick. However, continued fractions method regardless of whether the derivative function, as long as have real roots in the case of only basic computing operation is fine. Has a computational complexity of small features.