摘要
引入两类新颖螺线，即讷氏（自然）对数螺线与内接圆线．二者均周绕渐近于一极限圆．前者在另一方面还具有曲线的自交点，这种情况在数学史上各种重要的螺线中从未出现过．
Two types of novel spirals are introduced,the spiral of Napierian loharithm and the inscribing circular spiral.They both approach asymptotically a limit cycle and the former has otherwise the points of self-intersection which have never occurred in various historical spirals of singificance.
出处
《哈尔滨理工大学学报》
CAS
1997年第6期93-98,共6页
Journal of Harbin University of Science and Technology
关键词
极限圆
螺线
内接圆螺线
自然对数螺线
limit cycle
self-intersection
reference gauge
piercing point
epoch amplitude
