or(R3) </pre>
<pre class="programlisting">
ts =

     1


iR2 =

     2


iR3 =

     4

</pre> Actually, the facets of <tt>R2</tt> and <tt>R3</tt> are the same, so these polyhedra have face to face property
        that can be checked using <tt>isAdjacent</tt> method. <pre class="programlisting"> R2.isAdjacent(R3) </pre>
<pre class="programlisting">
ans =

     1

</pre>
<h2>See Also</h2>
<a href="./isadjacent.html">isadjacent</a><p></p>
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