高斯赛德尔迭代法，高斯消去法，龙贝格算法，龙格-库塔算法，雅各比迭代法，二分法，最小二乘法……等常用数值算法-Gauss Sider method, Gauss elimination method, Romberg algorithm， Runge- Kutta algorithm, Jacobi iterative method, the dichotomy, the least square method and so on ... ... commonly used numerical