title: Is there any MATLAB function similar to semidefinite() from Python cvxpy package?
body: <pre><code>import cvxpy
  from cvxpy import semidefinite
  semidefinite(12,'S')
  </code></pre>
  <p>gives:</p>
  <pre><code>Expression(AFFINE, UNKNOWN, (12, 12))
  </code></pre>
  <p>Is there any similar function in MATLAB (2021a)?</p>