186547

  Column 4

                        -1
      1.23259516440783e-32
     -1.11022302462516e-16
      1.11022302462516e-16


err =

      2.25593997819691e-16

</pre><h2>Pseudo inverse<a name="27"></a></h2><p>SVD can be used to find a Pseudo inverse. For example,</p><p>Change format:</p><pre class="codeinput">format <span class="string">short</span> <span class="string">g</span>
</pre><p>Generate A with sigular values of [1 3 5 7]:</p><pre class="codeinput">A = randn(7,4)+i*randn(7,4);
[U,S,V] = svd(A,