By means of discussing plane symmetry that relates to point , curved surface and curve in a three - dimensional space , this paper gives a method to study point 、 curved surface 、 plane symmetric point on a curve 、 symmetric curved surface and symmetric curve equation 摘要討論了三維空間中,點(diǎn)、曲面、曲線關(guān)于平面的對稱問題,從而給出了求點(diǎn)、曲面、曲線關(guān)于平面對稱的對稱點(diǎn)、對稱曲面、對稱曲線方程的方法。