大数运算，使用泰勒展开、数值积分、复化梯形公式和辛甫森公式、龙贝格算法、欧拉公式、龙格库塔等算法求arctanx-Tarsus operation, uses Taylor, numerical integration, complex trapezoid formula and Simpson Mori formula, Romberg algorithm, Euler equations, Runge-Kutta algorithms seek arctanx

数值积分与数值微分的范例程序，包括五点Gauss-Legendre、Romberg 求积算法等-Numerical integration and numerical differentiation of the sample program, including the five-point Gauss-Legendre, Romberg quadrature algorithm

part1用三次样条插值的三弯矩法 part2求非线性方程及方程组的根 part3用龙贝格和高斯法求积分 part4比较三次样条求导法与数值积分求导法 part5用指定方法求给定方程组的解 part6研究解线性方程方程组的迭代法收敛速度 part7求非线性方程及方程组的根 part8用QR算法求矩阵特征值 part8求非线性方程及方程组的根-Three moment Method part2 part1 cubic spline interpolation wit

采用数值积分算法中的复化梯形公式和复化Simpson公式计算的近似值的过程和方法，并对比这两种计算公式。理解Romberg算法计算的近似值的过程和方法,并对比以上三种方法。(The procedure and method of calculating the approximate value calculated by the complex trapezoidal formula in the numerical integration algorithm and the complex