Curve fitting, ellipse fitting useful

Douglas-Peucker是曲线拟合和压缩数据的最好方法，本人编辑这个程序方便大家调用，拟合压缩曲线。-Douglas-Peucker curve fitting and the compression of data is the best way, I called you to edit this program to facilitate the fitting compression curve.

matpower 总体最小二乘曲线拟合 h-matpower General least squares curve fitting hahahah