 \hfill \cr    A\left( {n - 0,c} \right) = \sqrt n {{c^{\,n - 0} } \over {\left( {n - 0} \right)!}} =  \hfill \cr     = \int_{r\, = \;0\;}^{\;R_{\,I} } {S(n - 0,r)dr}  + \int_{r\, = \;R_{\,I} \;}^{\;R_{\,C} } {