破圈法，边割法，避圈法的比较： 当图为连通且边树较少时，用破圈法较好 当图边数较多时，使用边割法和避圈法较好 -breaking lap, cutting edge, avoiding the comparison circle : When map is connected and fewer side tree, breaking lap with a better method when the edges of a few more, the use of cut

列出了matlaba最常用的工具箱函数，包括最小二乘函数，样条函数-Lists the most commonly used matlaba toolbox function, including least-squares function, and so on spline function