比例导引，用于导弹的目标物体之间构造的函数仿真，其结果是一个三维图像-Proportional navigation, the missile' s target object for the constructor' s function between the simulation, the result is a three-dimensional image

航天卫星轨道运行计算，输入轨道根数或初始位置和速度，输出运行轨迹，并绘出三维图像。-Space satellite orbit calculation, enter the number of the track or the initial position and velocity output running track, and draw a three-dimensional image.