摘要
给出了偏导数在射影几何中二阶曲线的表达式、极线方程、配极变换式及奇点定义上的应用.
This paper shows the applications of partial derivative in projective geometry,such as on the second-order curve equation, on the polar line equation, on polar transformation and on the definition of singular point.
出处
《甘肃高师学报》
2009年第5期88-89,共2页
Journal of Gansu Normal Colleges
关键词
偏导数
射影几何
二阶曲线
partial derivative
projective geometry
second-order curve
