{x,y,z}"</tt>
</ul>

<i>Compound expressions</i><br>

<p>The real power of this language is that all these expressions may be nested to result in a compact
and readable expression that creates an entire p.d.f. and its components

<pre>
   "Gaussian::g(x[-10,10],m[-10,10],3)"
</pre>

<p>Creates a <tt>RooGaussian</tt> named 'g', its observables 'x' with range [-10,10],
its parameter 'm' with range [-10,10]' and a constant width of 3.

<pre>
   "SUM::model( f[0.5,0,1] * Gaussian( x[-10,10], m[0], 3] ),
       