<a href="https://en.wikipedia.org/wiki/H%C3%A9non-Heiles_System" class="extiw" title="en:Hénon-Heiles System">Hénon-Heiles model</a>, quasi-periodic motion. A 3D animation for <a href="https://en.wikipedia.org/wiki/Phase_space" class="extiw" title="en:Phase space">phase trajectory</a> of well-known model <a href="//commons.wikimedia.org/wiki/Dynamical_system" title="Dynamical system">dynamical system</a> is shown. <a href="https://en.wikipedia.org/wiki/Poincar%C3%A9_map" class="extiw" title="en:Poincaré map">Poincaré section</a> points which are forming two closed curves, prove that the motion in system is <a href="https://en.wikipedia.org/wiki/Quasiperiodic_motion" class="extiw" title="en:Quasiperiodic motion">quasi-periodic</a> for current system parameters. Following software was used to prepare the image:
<ul><li>proprietary software for dynamical systems exploring: <a rel="nofollow" class="external free" href="http://odestudy.wix.com/derek">http://odestudy.wix.com/derek</a></li>
<li>Wink - a Tutorial and Presentation creation software: <a rel="nofollow" class="external free" href="http://www.debugmode.com/wink/">http://www.debugmode.com/wink/</a></li>
<li>XnView - image viewer: <a rel="nofollow" class="external free" href="http://www.xnview.com/en/">http://www.xnview.com/en/</a></li>
<li>GifMaker - web-page for animated GIF creation: <a rel="nofollow" class="external free" href="http://gifmaker.me/">http://gifmaker.me/</a></li></ul>
<a href="//commons.wikimedia.org/wiki/User:Belch84" title="User:Belch84">Belch84</a>
<span class="int-own-work" lang="en">Own work</span>