3D数学是一门与计算几何相关的学科，计算几何则是研究怎样用数值方法解决几何问题的学科。3D数学和计算几何广泛应用在那些使用计算机来模拟3D世界的领域，如图形学、游戏、仿真、机器人技术、虚拟现实和动画等。(3D mathematics is a subject related to computational geometry. Computational geometry is the subject of studying how to solve geometric problems by numerical methods. 3D mathematics and computational geometry are widely used in fields such as computer graphics, games, simulations, robotics, virtual reality and animation, which are widely used in computer simulations of the 3D world.)