&gt; * Everyone who follows the current rules of the SI blindly (as per JadeNB&#x27;s analysis above) &quot;knows&quot; that a Hz is 1 radian&#x2F;s.<p>FTFY<p>In any non-brain-dead system, angular frequency (rad&#x2F;s, degrees&#x2F;s, rev&#x2F;s, RPM) has to be accounted for differently than 1&#x2F;time. This unfortunately won&#x27;t prevent automated systems from accepting &quot;sin ft&quot; where f is in Hz (incorrect) rather than &quot;sin wt&quot; where w is in rad&#x2F;s (correct), but there&#x27;s really no way to handle this automatically.