 $$\begin{array}{l} {\ds (0 / \sqrt{0}) \Delta_b \Biggr\{ \sqrt{n^b}\Biggr[\frac{\partial L(..)}{\partial {y^{\alpha ..}_{b}}_{|(..,n^b-0,..)}} } \\[0.00cm] {\ds + \frac{\partial L(..)}{\partial y_{b|..}^{\alpha ..}} \cdot (\Delta_a^{\scsc\#} A^{\alpha ..})_{|(..,n^b-0,..)} - \delta_