span class="comment">// 3.141592653589793 (π)</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="keyword">constexpr</span> <a class="code hl_class" href="classfpm_1_1fixed.html">fx8</a> FX8_PI_2      = <a class="code hl_typedef" href="submath_8h.html#a3c7575e4052233f0448150e835947be1">fx8</a>(402, 256);  <span class="comment">// 1.5707963267948966 (π/2)</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</spa