尺规作图

尺规作图CAI课件的设计及实现

Design and Implementation of CAI Courseware about Drawing with Ruler and Compass

尺规作图及作图可能性研究

Drawing with Ruler & Compass and the Study of Drawing Possibilities

域的扩张与尺规作图的研究

A Study of Field Extension and Drawing with Ruler and Compass

圆锥曲线顶点与焦点的尺规作图

Sector Constructing for Apex and Focus of Conical Section

尺规作图二等分多边形面积

Halving the Polygonal Areas with Rulers and Compass

传统的几何作图教学历来强调用尺规作图。

In traditionally teaching how to draw geometric figures , stress was always laid on the use of rulers and compasses .

本文在已知确定圆锥曲线的基础上，通过确定圆锥曲线的中心和顶点，给出了圆锥曲线焦点的尺规作图方法。

On the hasis of the known conical section , the essay discusses the methods of sector constructing for apex and focus of conical section by deciding the center of conical section .