Brendan M. Sleight bmsleight
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| /* An OpenSCAD squircle | |
| Copyright (C) 2022 by Brendan M. Sleight | |
| Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted. | |
| https://en.wikipedia.org/wiki/Squircle | |
| A squircle is a shape intermediate between a square and a circle. | |
| A superellipse, where x^4 + y^4 = 1. |
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