在数值微积分中讨论并比较了没有初等函数解析式情况下的 定积分数值逼近的-Discussed in the numerical integration and compared the analytic situation is not under the primary function of integral numerical approximation of the rectangular method, trapezoidal method, Simpson' s method

數值方法c8 c8 c8 c8c c c8 -numerical method

采用高斯主元消去法求解线性方程组的数值解-Gaussian elimination method for solving the main element numerical solution of linear equations