有哪位大神能帮我看看为什么LINGO求不出来这个模型的解么？真的想了好久也想不通
L=a*@sinh(x/a+@log((@sin(B)+1)/@cos(B)));
L=22.05;
a=f/59.59;
f=720*(2-h);
y=(18-h)-@sin(A1)-@sin(A2)-@sin(A3)-@sin(A4)-@sin(A5);
y=a*@cosh(x/a+@log((@sin(B)+1)/@cos(B)))-a/@cos(B);
h=(L*w_0+w_1+w_2+3*w+f*@tan(B)+9800)/31557.3;
@tan(A5)=(L*w_0+w_1+w_2+3*w+f*@tan(B))/f;
@tan(A4)=(L*w_0+w_1+w_2+2*w+f*@tan(B))/f;
@tan(A3)=(L*w_0+w_1+w_2+w+f*@tan(B))/f;
@tan(A2)=(L*w_0+w_1+w_2+f*@tan(B))/f;
@tan(A1)=(L*w_0+w_1+f*@tan(B))/f;
w_0=59.59;
w_1=10214.62;
w_2=269.96;
w=97.80;
@FREE(X);
@FREE(Y);
@FREE(A);
@FREE(B);
@FREE(F);
@FREE(H);
@FREE(A1);
@FREE(A2);
@FREE(A3);
@FREE(A4);
@FREE(A5);