title: removing row and column from a List of a List c#
body: <p>I made a matrix from list of list. How can I remove column 'i' and row 'i'? Is there a method for that? I've tried <code>RemoveAt</code> but that'd remove one item.</p>
  
  <pre><code>List&lt;List&lt;int&gt;&gt; mtx = new List&lt;List&lt;int&gt;&gt;();
  
    0 1 2 3
    -------
  0|0 0 0 0
  1|0 0 0 0
  2|0 0 0 0
  3|0 0 0 0
  </code></pre>
  
  <p>For example I would like to delete row i=2</p>