geodesic equation

The solution of null geodesic equation in disk with dark matter halo

带晕盘状天体内、外的零测地线方程的解

The curvature and the torsion of geodesic , the parametric equation of geodesic and of normal section , and the angle between geodesic and normal section , are derived from the Frenet formulas in this paper .

本文利用弗莱纳公式推导了大地线的曲率和挠率公式、大地线的参数方程、法截线的参数方程以及大地线和法截线的夹角。