2,<a class="code hl_struct" href="structQuad_1_1QuadRule.html">QuadRule</a> *rule_sum);</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>  <span class="keywordtype">void</span> <a class="code hl_function" href="classQuad.html#af5ab1895528d787dfc6fedcc6deb3e4f">SubtractTwoRules</a>(<a class="code hl_struct" href="structQuad_1_1QuadRule.html">QuadRule</a> *rule1,<a class="code hl_struct" href="structQuad_1_1QuadRule.html">QuadRule</a> *rule2,<a class="code hl_struct" h