如果两物体间距离缩小一半（减小到原来的1/2），则其间万有引力增大到4倍（增大3倍）。
If the distance between two objects is shortened twice, then the gravitational pull grows by a factor of 4.
物体间距离的计算在布局问题、动态系统模拟、机器人路径规划及干涉检验等领域具有重要意义。
It is important to compute the distance between objects in some fields such as packing problems, dynamic simulation systems, path planning of robots and collision detection.
两个物体间距离越近，两者间的相互引力越大；但引力也作用于其自身，所以，在极小距离时开始反馈环。
The closer two objects are to each other, the stronger the gravitational attraction between them; but gravity also ACTS on itself, and as a result, at very small distances a feedback loop starts.
应用推荐