<span class="hljs-meta">@meta</span>
<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">C</span>:</span>

<span class="hljs-meta">    @decorator</span>
    <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">f</span><span class="hljs-params">(self, H, V, beta, r)</span>:</span>
        S = (H @ beta - r).T @ inv(H @ V @ H.T) @ (H @ beta - r)
        <span class="hljs-keyword">return</span> S
