riance</span> <span class="string">by</span> <span class="string">targets</span>                           <span class="string">[E*E x n*E]</span>
dVdt      <span class="string">inv(s)</span> <span class="string">times</span> <span class="string">input-output</span> <span class="string">covariance</span> <span class="string">by</span> <span class="string">targets</span>        <span class="string">[D*E x n*E]</span>
dMdX      <span class="string">output</span> <span class="string">mean</span> <span class="s