In the paper, we discuss the equation about angle bisector of intersecting line in the analytic geometry and the equation about the bisection planes of dihedral angles in analytic geometry of three dimensions.

• 摘要主要讨论了平面解析几何中和空间解析几何两相交直线夹角平分线方程及空间直角坐标系下两相交平面的二面角的角平分面方程。