>   32</span>&#160;latex.matrix_delimiters(&quot;\{&quot;,&quot;\}&quot;)</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;\end{sagesilent}</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;Mass</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>