常用数值算法
............\二分法.cpp
............\列主元高斯消去法.cpp
............\四阶阿当姆斯预测-校正公式.cpp
............\复化辛卜生公式.cpp
............\幂法.cpp
............\拉格郎日插值多项式.cpp
............\改进欧拉法.cpp
............\最小二乘法.cpp
............\牛顿值多项式.cpp
............\牛顿迭代法.cpp
............\自适应梯形公式（变步长）.cpp
............\雅可比迭代法.cpp
............\高斯-赛德尔迭代法.cpp
............\龙格-库塔算法.cpp
............\龙贝格算法.cpp