I&#39;ve been trying to form a class based on the matrix_slice to ease some operations. Thus far I have: <a href="http://codepad.org/EepVDx2C">http://codepad.org/EepVDx2C</a><br><br>The compiler complains about the line where I form a matrix_slice (line 21 in the paste), and specifically with the first argument. I&#39;m lost as to why I can&#39;t submit a matrix&lt;double&gt; as the first argument in the manner I&#39;ve tried.<br>

<br>Any help would be greatly appreciated.<br>~Eric<br>