它包含了数据拟合、interp1 - 一元函数插值、 spline - 样条插值、polyfit - 多项式插值或拟合、curvefit - 曲线拟合、caspe - 各种边界条件的样条插值、casps - 样条拟合(没有)、interp2 - 二元函数插值、griddata - 不规则数据的二元函数插值、interp - 不单调节点插值和lagrange - 拉格朗日插值法的代码.-It contains code of data fitting, interp1- unary function interpolation, spline- spline interpolation, polyfit- polynomial interpolation or fitting, curvefit- curve fitting, caspe- a variety of boundary conditions of the spline interpolation, casps- spline fitting (no), interp2- binary function interpolation, griddata- the dual function of irregular data interpolation, interp- interpolation nodes is not monotonous, and lagrange- Lagrange interpolation.