<p>
This is the document example.  A single quadrature of a standard normal
probablility density function is computed.  There are three packaging
methods used for the integrand evaluation function.  These are
a use-associated module routine, a routine contained within the invoking
program unit, and an external routine.  The modules quadpack2003 and 
set_precision are use-associated by the other program units.
</p>

<p>
There is a single main program which may be built using the makefile
<ul>
<li> documentExample uses set_precision.f90, fexternal.f90, normalPdf.f90, 
     quadpack2003.f90
</ul>
</p>

<h3>Sample Output from documentExample</h3>
<pre>
 Normal cumulative for mu =  1.00 sigma =  2.00
 within limits [mu-1,m+1] is =   0.383
 Packaging methods: fmodule, fexternal and fcontained all agree.
</pre>