求用Lingo解非线性方程组

A 1.158825
B -1.423252
C 0.9712104
D 0.5513175E-01
E -1.105864
F -1.968214

1.12544=((1.44*a)/(1.44-b))+((1.44*c)/(1.44-d))+((1.44*e)/(1.44-f));
1.12214=((1.69*a)/(1.69-b))+((1.69*c)/(1.69-d))+((1.69*e)/(1.69-f));
1.11888=((1.96*a)/(1.96-b))+((1.96*c)/(1.96-d))+((1.96*e)/(1.96-f));
1.11722=((2.1025*a)/(2.1025-b))+((2.1025*c)/(2.1025-d))+((2.1025*e)/(2.1025-f));
1.11556=((2.25*a)/(2.25-b))+((2.25*c)/(2.25-d))+((2.25*e)/(2.25-f));
1.11216=((2.56*a)/(2.56-b))+((2.56*c)/(2.56-d))+((2.56*e)/(2.56-f));
@free(a);
@free(b);
@free(c);
@free(d);
@free(e);
@free(f);

不止一组啊，你有什么条件么，先随便给一组好了
a: 0.567120437737114
b: 66.2644018504861
c: 0.33123553690347
d: -0.0141425572192461
e: 0.799834750908676
f: 0.0181134971168413