Introduction - If you have any usage issues, please Google them yourself
First determine a convergence of the equation with the root interval [a, b], and then use the fixed point iteration method to have the approximate root of the root interval, the initial value is determined by itself, the root is required to be accurate, and then the number of iterations of the two points, the fixed point iteration and the Aitken iterative acceleration method is compared. (request: using the function file call)