请输入您要查询的字词:

 

单词 equiangular spiral
释义

equiangular spiral

A curve whose equation in polar coordinates is r = ae, where a > 0 and k are constants. Let O be the origin and P be any point on the curve. The curve derives its name from the property that the angle α between OP and the tangent at P is constant. In fact, k = cotα. The curve is also called the logarithmic spiral.

Spiral with constant angle α

http://jwilson.coe.uga.edu/EMT668/EMAT6680.F99/Erbas/KURSATgeometrypro/related%20curves/related%20curves.html

Animations of related curves, and an interactive manipulation of the spiral in Geometer's Sketchpad.

随便看

 

数学辞典收录了4151条数学词条,基本涵盖了常用数学知识及数学英语单词词组的翻译及用法,是数学学习的有利工具。

 

Copyright © 2000-2023 Newdu.com.com All Rights Reserved
更新时间:2025/7/10 15:22:34