Abstract: Some basic ways of proving three lines share one point from the view points of analyticgeometry and projection geometry are expounded in this essay.
从仿射几何学与射影几何学的基本方法出发,简述了“三线共点”问题的一些基本的证明方法。
The synthetic geometers were developing projective geometry.
综合几何学家们在发展射影几何学。
American mathematician noted for his work on projective geometry and topology.
维布伦，奥斯瓦尔德1880－1960美国数学家，以其在射影几何学以及拓扑学上的研究而闻名
synthetic(projective) geometry
综合(射影)几何(学)
finite dimensional projective geometry
有限维射影几何(学)
the geometry of properties that remain invariant under projection.
不为射影改变的性质的几何学。
general affine differential geometry
一般仿射微分几何(学)
Of or relating to the geometry of affine transformations.
仿射几何学的仿射变换式几何学的，与其相关的
Generalization of a Proposition in Plane Geometry to Projective Geometry;
一个初等几何命题在射影几何中的推广
Geometric conditions for measuring transmission density
GB/T11500-1989摄影透射密度测量的几何条件
Geometric conditions for photographic reflection density measurement
GB/T12822-1991摄影反射密度测量的几何条件
We shall interrupt the history of projective geometry.
我们要把射影几何的历史断开。
Deducing the Theorems of 3-Dimension Projective by Applying the Principle of Duality;
应用对偶原理导出三维射影几何定理
Geometrical-optics Approximation of Light Scattering by Particles
粒子光散射的几何光学近似方法研究
Geometrical optics solution for surface polarimetric scattering of camouflage materials
伪装材料表面偏振散射的几何光学解
QUT OF EUCLIDEAN GEOMETRY --DISCESSION ON THE IMPONTANT EFFECT UPON IDEAL ELEMENTS,COMPLEX ELEMENTS AND DUAL ELEMENTS IN PROJECTIVE GEOMETRY
走出欧氏几何——论射影几何中理想元素、复元素和对偶元素作用
RF Interstitial Hypertheapy--Geometry Factors Influence SAR Distribution;
射频组织间热疗——几何因素对SAR分布影响的探讨
The Application of a Theorem of Linear Algebra in Projective Geometry;
探讨线性代数的一个定理在射影几何中的应用
Comparison with the Two Schools of Projective Geometry in the Nineteen Century;
19世纪射影几何发展史上两大派别的比较研究