><pre class="language-matlab">dMdi      <span class="string">output</span> <span class="string">mean</span> <span class="string">by</span> <span class="string">inputs</span>                                  <span class="string">[ E  x n*D]</span>
dSdi      <span class="string">output</span> <span class="string">covariance</span> <span class="string">by</span> <span class="string">inputs</span>                            <span class="string">[E*E x n*D]</span>
dVdi      <span class="string">inv(s)</span> <sp