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SharedModel;
Variable y1, x1, y2, x2;
Constant m=2,n=2;
Parameter a(0:m), b(0:n);
Function y1 = exp(ln(x1) + 1/77*sum(i=0:m)(a[i]*x1^i) + sum(i=0:n)(b[i]*x1^i));
         y2 = exp(ln(x2) + 1/87*sum(i=0:m)(a[i]*x2^i) + sum(i=0:n)(b[i]*x2^i));
Data;
//y1, x1, y2, x2
0.00414387 0.107 1.03029     1.20822
0.0092601  0.198 0.89002     1.15151
0.0209396  0.33  0.726167    1.06027
0.0332724  0.431 0.618173    0.993699
0.0454639  0.51  0.525074    0.932055
0.0618788  0.595 0.449355    0.880274
0.0845532  0.687 0.376117    0.813699
0.115287   0.787 0.306604    0.739726
0.134715   0.839 0.266882    0.690411
0.1576     0.892 0.22716     0.633699
0.184008   0.947 0.196127    0.596712
0.215391   1.004 0.16137     0.530137
0.251188   1.06  0.130338    0.473425
0.293487   1.118 0.0968222   0.401918
0.342627   1.177 0.071996    0.327945
0.400102   1.236 0.0471698   0.263836
0.467011   1.297 0.0347567   0.204658
0.545117   1.358 0.016137    0.147945
0.636856   1.419 0.00620655  0.0665753
0.743656   1.481 0.00248262  0.00493151