摘要
我们通过对数轴和平面直角坐标系的拓广,利用拓广后的坐标系对以下两个问题进行研究.1.在二次曲线的方程中研究其参数的变化,深刻反映了圆锥曲线在中心投影下的互变关系.2.复数 a+bi 的新的几何意义(包括一维直到 n 维).
For the extension of the number axis and plane rectangular coor- dinates,we use a new system to make research on the two problems as follows: 1.Through studying the change of the parameters in quadratic curve equations,it expound profoundly the interconversion relation- ship of the central projection of the conics focus. 2.New geometric significance of the complex number a+bi (including one dimension to n dimension)is suggested.
