Question

lingo非线性优化问题,目标函数有点复杂

Answer 1

model:

sets:

wilson/r1..r7/:x,y;

pre/1/:G1,G2;

link(wilson,pre);

endsets

DATA:

x y= 0.2012 7.04

0.3013 9.19

0.3987 10.61

0.4993 11.11

0.5994 10.32

0.7023 9.51

0.7998 7.3;

V1= 159.53;

V2= 157.13;

T= 298.15;

enddata

min = @sum (link:(y-(1-x)*((x*(V1/V2)*@exp(-(G1/(8.314*T))))/(1-x+x*(V1/V2)*@exp(-(G1/(8.314*T)))))*G1

+x*((1-x)*(V2/V1)*@exp(-(G2/(8.314*T))))/(x+(1-x)*(V2/V1)*@exp(-(G2/(8.314*T))))*G2)^2);

@for(PRE:@free(G1);@free(G2));

@FOR(WILSON:@FREE(X);@FREE(Y));

end

不对那你用global solver解试试 你这种目标函数本来用lingo求最多也就是求个大概 要是什么函数lingo都能求准了那数学就不用做了