在本篇論文裡，我們將以二維射影平面為主，來探討在一固定射影座標下，射影變換群的代數表達方式，接著藉此說明射影變換與射影標架間的對應關係;In this thesis we will study how to represent a projective transformation algebraically on $RP^2$ referred to a fixed system of projective coordinates, and then explain the relation of projective frames and projective transformations.
