tion problem</span>
<span class="comment">%           minimize    -sum_{i=1}^m w_i*log(b_i-a_i^Tx),</span>
<span class="comment">% where w_i&gt;0</span>

<span class="comment">% Input data</span>
randn(<span class="string">'state'</span>, 0);
rand(<span class="string">'state'</span>, 0);
n = 10;
m = 50;
tmp = randn(n,1);
A = randn(m,n);
b = A*tmp + 2*rand(m,1);
w = rand(m,1);

<span class="comment">% Analytic center</span>
cvx_begin
    variable <span class="string">x(n)</span>
    minimize <span class="str