利用推广至四维欧氏空间的Frenet公式探究了球面曲线的几何特征,给出判定一条空间曲线是球面曲线的一个充分必要条件.
Investigated the geometric properties of spherical curves by using of Frenet formula in 4-dimensional Euclidean space and obtained a necessary and sufficient condition in judging that space curves are spherical curves.