<p>Enlarged view of the period-3 window at .</p>

<p>Left: the <i>xy</i> projection of the period-3 limit cycle for <i>q</i> = 0.98, and initial condition (0.01,0,0), with the three distinct local maxima of <i>x</i>(<i>t</i>) per period marked. Right: the corresponding three dimensional view of the same closed orbit. The orbit closes after exac<i>t</i>ly three maxima of <i>x</i>, which is the signature of the period-3 window and the reason the bifurcation diagram of <a href="plosone.org/article/info:doi/10.1371/journal.pone.0358480#pone.0358480.g010" target="_blank">Fig 10</a> collapses to three branches at this coupling.</p>