在控制台下利用高斯消元法实现直线拟合，多项式拟合，指数函数拟合，幂函数拟合，大家可以利用它进行二次开发-In the console environment，I using the Gaussian elimination method to achieve linear fitting, polynomial fitting, exponential fitting, fitting power function, we can use it for secondary development

多项式拟合的C语言程序，做曲线平滑时可能有所帮助-Polynomial fitting of the C language program, make a smooth curve may be helpful

多项式拟合和三次b样条曲线拟合源代码，过关键控制点。-Polynomial fitting and cubic b-spline curve fitting source code, hit critical control points.