M0,M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16,M17,M18,M19
有20个数据 其算法如下,请问这是一个什么函数
(M0*4+M1*3+M2*2+M3)/10
(M1*4+M2*3+M3*2+M4+M0*3)/13
(M2*4+M3*3+M4*2+M5+M1*3+M0*2)/15
(M3*4+M4*3+M5*2+M6+M2*3+M1*2+M0)/16
(M4*4+M5*3+M6*2+M7+M3*3+M2*3+M1)/16
(M5*4+M6*3+M7*2+M8+M4*3+M3*2+M2)/16
(M6*4+M7*3+M8*2+M9+M5*3+M4*2+M3)/16
(M7*4+M8*3+M9*2+M10+M6*3+M5*2+M4)/16
(M8*4+M9*3+M10*2+M11+M7*3+M6*2+M5)/16
(M9*4+M10*3+M11*2+M12+M8*3+M7*2+M6)/16
(M10*4+M11*3+M12*2+M13+M9*3+M8*2+M7)/16
(M11*4+M12*3+M13*2+M14+M10*3+M9*2+M8)/16
(M12*4+M13*3+M14*2+M15+M11*3+M10*2+M9)/16
(M13*4+M14*3+M15*2+M16+M12*3+M11*2+M10)/16
(M14*4+M15*3+M16*2+M17+M13*3+M12*2+M11)/16
(M15*4+M16*3+M17*2+M18+M14*3+M13*2+M12)/16
(M16*4+M17*3+M18*2+M19+M15*3+M14*2+M13)/16
(M17*4+M18*3+M19*2+M16*3+M15*2+M14)/15
(M18*4+M19*3+M17*3+M16*2+M15)/13
(M19*4+M18*3+M17*2+M16)/10
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