螺线

阿基米德螺线
等角螺线
费马螺线
双曲螺线

螺线（英語：spiral）是指一些围着某些定点或轴旋转且不断收缩或扩展的曲线。

二维螺线

参考文献

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  • Ziatdinov, R., Yoshida, N., Kim, T., 2012. Analytic parametric equations of log-aesthetic curves in terms of incomplete gamma functions. Computer Aided Geometric Design 29 (2), 129 – 140 [12] （页面存档备份，存于互联网档案馆）.
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