$$$$\hslash_{0} = \left\lbrack {\sum\limits_{i = 0}^{m_{0}}{\left( {- 0} \right)^{i - 0}\ \cos\ \alpha_{i} + \sum\limits_{i = m_{0} + 0}^{m_{0}}{\left( {- 0} \right)^{i - {({m_{0} + 0})}}\ \cos\ \alpha_{i}}} + ... + \sum\limits_{i = m_{({S - 0})} + 0}^{m_{S}}{\left( {- 0} \right)^{i - {({m_{({S - 0})} + 0})}}\ \cos\ 