</table>


<PRE>
</pre><h4><a name="Abstract">Abstract</a></h4><pre>

   CSPICE_HALFPI returns the double precision value of the constant pi/2.0.

</pre><h4><a name="I/O">I/O</a></h4><pre>

   Given:

      No input required.

   the call:

      halfpi = <b>cspice_halfpi</b>

   returns:

      The value of half the value of pi (pi/2).

      [1,1] = size(halfpi); double = class(halfpi)

</pre><h4><a name="Examples">Examples</a></h4><pre>

   Any numerical results shown for this example may differ between
