A few hypocycloids. Made to substitute File:Hypocycloid.gif, which actually shows some hypocycloids, and some epicycloids. Done at the request of a it.wiki user.
<a href="//commons.wikimedia.org/wiki/User:Berto" title="User:Berto">Jacopo Bertolotti</a>
2020-09-17
<span class="int-own-work" lang="en">Own work</span>