845819875721  </span><span class="comment">/* pi/4           */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span><span class="preprocessor">#define M_1_PI      0.318309886183790671537767526745028724  </span><span class="comment">/* 1/pi           */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span><span class="preprocessor">#define M_2_PI      0.