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<title>GNU Scientific Library – Reference Manual: Quasi-random number generator examples</title>
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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> [<a href="Function-Index.html#Function-Index" title="Index" rel="index">Index</a>]</p>
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<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 <stdio.h>
#include <gsl/gsl_qrng.h>
int
main (void)
{
int i;
gsl_qrng * q = gsl_qrng_alloc (gsl_qrng_sobol, 2);
for (i = 0; i < 1024; i++)
{
double v[2];
gsl_qrng_get (q, v);
printf ("%.5f %.5f\n", 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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