nts and objectives, just
like any other concave function in the atom library.</p>
<p>There are two practical issues that arise when defining functions using
incomplete specifications, both of which we will illustrate using our
<tt class="docutils literal"><span class="pre">huber</span></tt> example above. First of all, as written the function works
only with scalar values. To apply it (elementwise) to a vector requires
that we iterate through the elements in a <tt class="docutils literal"><span class="pre">