\[ R(\lambda) = \left[ \sum_{i=1}^{n} a_i \cdot (R_i(\lambda))^{1/n} \right]^{n} \]

\[ R(\lambda) = \sum_{i=1}^{n} a_i \cdot R_i(\lambda) \]

\[ a_{\,C+M} = c \cdot m \cdot (1-y) \] \[ R(\lambda) = \left[ \sum_{i=1}^{n} a_i \cdot (R_i(\lambda))^{1/n} \right]^{n} \]