Periodic points of f(z) = z*z-0.75 for period =4 as intersections of 2 implicit curves "(which are related by the Cauchy-Riemann equations) separately. Their intersections give the complex roots of the original function. "<sup id="cite_ref-1" class="reference"><a href="#cite_note-1">[1]</a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2">[2]</a></sup>
<a href="//commons.wikimedia.org/wiki/User:Adam_majewski" class="mw-redirect" title="User:Adam majewski">Adam majewski</a>
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