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x2 < (a20*b0+a21*b1+a22*b2+...+a2i*bi)/(b0+b1+...+bi)  < y2
x3 < (a30*b0+a31*b1+a32*b2+...+a3i*bi)/(b0+b1+...+bi)  < y3
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x7 < (a70*b0+a71*b1+a72*b2+...+a7i*bi)/(b0+b1+...+bi)  < y7
x8 < (a80*b0+a81*b1+a82*b2+...+a8i*bi)/(b0+b1+...+bi)  < y8

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2Â¥: Originally posted by feixiaolin at 2015-09-08 22:19:08
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4Â¥2015-09-09 10:19:39
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4Â¥: Originally posted by feixiaolin at 2015-09-09 10:19:39
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