lptopic">Test if SO(2) rotation matrix</span></p><p>
<span style="color:red">isrot2</span>(<strong>R</strong>) is true (1) if the argument is of dimension 2x2 or 2x2xN, else false (0).

</p>
<p>
<span style="color:red">isrot2</span>(<strong>R</strong>, 'valid') as above, but also checks the validity of the rotation
matrix.

</p>
<h2>Notes</h2>
<ul>
  <li>A valid rotation matrix has determinant of 1.</li>
</ul>
<h2>See also</h2>
<p>
<a href="isrot.html">isrot</a>, <a href="ishomog2.html">ishomog2</a>, <a hre