本程序是图形的设计，比较简单 可以画线，圆和椭圆 并可以平移，旋转，选择删除，回退，保存 打开图形,The code is used to graph design. It can draw line,draw circle,draw ellipse.The graph can be rotated,translated and selected delete,undo,save.

Example of Graph of Distribution of Frequencies and Deviation Standard / Bell of Gauss in function of the obtained samples and the values of control of a normal productive process. -Example of Graph of Distribution of Frequencies and Deviati