讨论二次曲面透视投影廓轮学表达式的建立，以及为单叶双曲面编制了通用程序，并在计算机上绘出了图形。这样为利用计算机绘制二次曲面透视图提供了方法和数学依据。 Discusses the establishment of wheel surface expression of conic projection of conic surface, as well as general program for single-leaf hyperboloid and draws a graph on the computer. This provides a method and mathematical basis for the use of computer drawing quadratic surface perspective.