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Next: <a href="Quasi_002drandom-number-references.html#Quasi_002drandom-number-references" accesskey="n" rel="next">Quasi-random number references</a>, Previous: <a href="Quasi_002drandom-number-generator-algorithms.html#Quasi_002drandom-number-generator-algorithms" accesskey="p" rel="previous">Quasi-random number generator algorithms</a>, Up: <a href="Quasi_002dRandom-Sequences.html#Quasi_002dRandom-Sequences" accesskey="u" rel="up">Quasi-Random Sequences</a> &nbsp; [<a href="Function-Index.html#Function-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="Examples-12"></a>
<h3 class="section">19.6 Examples</h3>

<p>The following program prints the first 1024 points of the 2-dimensional
Sobol sequence.
</p>
<div class="example">
<pre class="verbatim">#include &lt;stdio.h&gt;
#include &lt;gsl/gsl_qrng.h&gt;

int
main (void)
{
  int i;
  gsl_qrng * q = gsl_qrng_alloc (gsl_qrng_sobol, 2);

  for (i = 0; i &lt; 1024; i++)
    {
      double v[2];
      gsl_qrng_get (q, v);
      printf (&quot;%.5f %.5f\n&quot;, v[0], v[1]);
    }

  gsl_qrng_free (q);
  return 0;
}
</pre></div>

<p>Here is the output from the program,
</p>
<div class="example">
<pre class="example">$ ./a.out
0.50000 0.50000
0.75000 0.25000
0.25000 0.75000
0.37500 0.37500
0.87500 0.87500
0.62500 0.12500
0.12500 0.62500
....
</pre></div>

<p>It can be seen that successive points progressively fill-in the spaces
between previous points. 
</p>




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