projective geometry

The synthetic geometers were developing projective geometry.

综合几何学家们在发展射影几何学.

Connected graded algebra is the main object studied in noncommutative projective geometry.

连通分次代数是非交换射影几何主要研究的具体对象之一.

In this paper , the bar fixing problems of spatial four _ bar mechanism are discussed applying projective geometry.

应用画法几何探讨空间四杆机构各杆件的定位问题.

We shall interrupt the history of projective geometry.

我们要把射影几何的历史断开.

American mathematician noted for his work on projective geometry and topology.

不为射影改变的性质的几何学.

Cross ratio and element at infinity are two important concepts with projective geometry and primary tools in considerate projective property of figures.

交比和无穷远元素是射影几何中的两个重要概念，它们是探讨图形射影性质的主要工具。