线性方程组求解与方程组性态讨论(实验报告)三次样条插值问题,数值积分,微分方程数值解,线性方程组的迭代解法,非线性方程的迭代解法-solving linear equations and the equations behavior discussion (Experiment), cubic spline interpolation, numerical integration, the numerical solution of differential equations, linear equations iterative method, nonlinear equations of iterative solution