="pre">error</span></tt> messages. For instance,
the following code</p>
<div class="highlight-none"><div class="highlight"><pre>variable x(10)
norm(x) == 1
</pre></div>
</div>
<p>will produce this error in CVX:</p>
<div class="highlight-none"><div class="highlight"><pre>Error using cvxprob/newcnstr (line 181)
Disciplined convex programming error:
  Invalid constraint: {convex} == {real constant}
</pre></div>
</div>
<p>Disciplined convex programming errors indicate that the model fails
to adhere to the rules