<span class="pre">huber</span></tt> will
contain a special Matlab object that represents the function call in
constraints and objectives. Thus the function <tt class="docutils literal"><span class="pre">huber</span></tt> can be used
anywhere a traditional convex function can be used, in constraints or
objective functions, in accordance with the DCP ruleset.</p>
<p>There is a corresponding development for concave functions as well.
Given a convex set <span class="math">\(S\)</span> as above, and a concave fu