l"><span class="pre">0</span></tt>, which yields a convex function. So we are free to use
<tt class="docutils literal"><span class="pre">deadzone</span></tt> anywhere in a CVX specification that we might use
<tt class="docutils literal"><span class="pre">abs</span></tt>, for example, because CVX knows that it is a convex
function.</p>
<p>Let us emphasize that when defining a function this way, the expressions
you use <em>must</em> conform to the DCP ruleset, just as they would if they
had been inserted dire