><a name="l00072"></a><span class="lineno">   72</span>&#160;00068 Level Floor</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;00069 \(\backslash\)begin\{equation\}</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;00070    [L]=\(\backslash\)sage\{Level\_floor\}</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;00071 \(\backslash\)end\{equation\}</div>
<div class="line"><a name="l00076"></a><span class="l