>00086 <span class="comment">        float ddist(float x1, float y1, float z1, float x2, float y2, float z2) </span>
<a name="l00087"></a>00087 <span class="comment">  </span>
<a name="l00088"></a>00088 <span class="comment">   ## SPECIFICATION: </span>
<a name="l00089"></a>00089 <span class="comment">        Calculate the square of the euclidian distance between two points in space </span>
<a name="l00090"></a>00090 <span class="comment">        p1(x1, y1, z2) and      p2(x2, y2, z2)</span>
<a name="l00091