matlab多元函数拟合进行拟合的方程是r=a*b*c*X1*X2/(1+aX1+bX2+dX3)^2r=0.0051,0.0065,0.0073,0.008,0.0086,0.0043,0.0059,0.0067,0.0073,0.0079,0.0065,0.0039,0.0024,0.0019,0.0013X1=0.1 0.15 0.2 0.25 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2x2

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