istance between two points in space p1(x1, y1, z2) and </span>
<a name="l00065"></a>00065 <span class="comment">        p2(x2, y2, z2)</span>
<a name="l00066"></a>00066 <span class="comment">  </span>
<a name="l00067"></a>00067 <span class="comment">   ## PARAMETRES:</span>
<a name="l00068"></a>00068 <span class="comment">        @ float x1, y1, z1: The first point's coordinates.</span>
<a name="l00069"></a>00069 <span class="comment">        @ float x2, y2, z2: The second point's coordinates.</span>
<a nam