iate function</a>, for example:
            <code class="computeroutput"><span class="identifier">constants</span><span class="special">::</span><span class="identifier">pi</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;()</span></code>.
          </li>
<li class="listitem">
            Where tables of coefficients are used (for example for rational approximations),
            care should be taken to ensure these are initialized at program startup
        