使用C++做的双链表模板类 具有头插法，尾插法，左向插入，右向插入，删除结点，获取结点值，设置结点值，复制构造函数，还重载了输出操作符、赋值操作符、相等操作符和不等操作符，还具有倒置链表的功能。还有结点类的重载的输出操作符，具有很好的封装性。-Using C++ to do the double linked list template class with the first interpolation method, tail interpolation, left to insert th

使用三次样条插值法，对离散数据进行拟合，并得出各点间表达式-Use the cubic spline interpolation, to fit the discrete data and concluded between the expression

Runge现象的验证，内有可选项：拉格朗日插值法、牛顿插值法和分段线性插值法。-The Runge phenomenon verification, with optional: Lagrange interpolation, Newton interpolation and piecewise linear interpolation.