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There are 84 equations,




where $i=1,\cdots,28$, $D=\sum_{i=1}^{28}D_i$,and $L=\sum_{i=1}^{28} L_i$, and $r,A_L,A_D,a_{d_i},b_{d_i},a_{l_i},b_{l_i},\alpha$ are already known, and $D_i,L_i,\lambda_i$ are to calculated.

How can I solve these 84 equations?

Thanks for you help!

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What about $\alpha$, $D$ and $L$? If those are given, your equations seem to be linear and can be solved separately for each $i$. – Brendan McKay Mar 17 '13 at 13:55
I am sorry for these mistakes and I have corrected it. $\alpha$ is already known. – gchphao Mar 18 '13 at 5:17

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