="identifier">acosh</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span></code> will
        speed up compile times, reduce object files sizes (since there are no templates
        being instantiated any more), and also speed up debugging runtimes - since
        the externally compiled libraries can be compiler optimised, rather than
        built using full settings - the difference in performance between <a class="link" href="../perf/getting_best.html" title