The amoeba of <i>P(z, w)=3z2+5zw+w3+1</i>
<a href="//commons.wikimedia.org/wiki/User:Oleg_Alexandrov" title="User:Oleg Alexandrov">Oleg Alexandrov</a>
28 February 2007 (original upload date)
<span class="int-own-work" lang="en">Own work</span>