论文部分内容阅读
1.问题提出方程x~x=log_ax是一个超越方程,超越方程一般没有精确解或解析解(在数学上,如果一个方程或者方程组存在至少一个由有限次常见运算给出的解,则称该方程存在解析解),而只有数值解(一般是无法求到精确解或者解析解的一种退而求其次的做法,或者解析解很复杂而取得足够精确的位数的解),只有特殊的超越方程才可以求出解析解来.所以我们的一个基本思路是把方程问题转化为函数问题,把方程根的问题转化为函数的零点问题或两个函数图像的交点
1. PROBLEM PROBLEMS The equation x ~ x = log_ax is a transcendental equation. Transcendental equations generally do not have exact solutions or analytical solutions. (Mathematically, if an equation or system of equations has at least one solution given by a finite number of common operations, There is an analytic solution), but only the numerical solution (generally can not find the exact solution or analytical solution of a back-to-back approach, or analytic solution is complex enough to obtain the exact number of digits solution), only the special Of the transcendental equation can be obtained analytic solution.So one of our basic idea is to convert the equation problem into a function problem and convert the problem of the root equation into the zero point of the function or the intersection of the two function images