ies the number of degrees of freedom.
          The following graph illustrates how the distribution changes for different
          values of &#957;:
        </p>
<p>
          <span class="inlinemediaobject"><img src="../../../../graphs/chi_squared_pdf.svg" align="middle"></span>
        </p>
<h5>
<a name="math_toolkit.dist_ref.dists.chi_squared_dist.h0"></a>
          <span class="phrase"><a name="math_toolkit.dist_ref.dists.chi_squared_dist.member_functions"></a></span><a class="link" href="chi_squared_