xy(g)">hasxy</a>	hasxy(g) --- determine if an embedding has been created for g</li><li><a href="intersect.html" class="code" title="function intersect(g,h1,h2)">intersect</a>	intersect(g,h1,h2) --- g is set to the intersection of h1 and h2.</li><li><a href="isconnected.html" class="code" title="function yn = isconnected(g)">isconnected</a>	isconnected(g) --- test if g is a connected graph</li><li><a href="iso.html" class="code" title="function [yn,p] = iso(g,h,options)">iso</a>	[yn,p] = iso(g,h,options) ---