求问lingo11中gcp的问题怎么修改
如图所示，运行起来就是显示error，不造怎么改。程序如下min x1+x2+lag1+lag2
s.t.
2) 2 x1+0.3 x2+ LAG1+ LAG2 >= 98
3) 4 x2+0.3 x1+ LAG1-2 LAG2 >= 277
4) x1 + x2 < 100
5) x1 - 2 x2 < 0
end
QCP 4
gin 2
这个是例题里的程序，直接运行就错了不知道为什么
语法错误，LINGO没有这样的语法。
model:
min=x1+x2+lag1+lag2;
2*x1+0.3*x2+LAG1+LAG2>98;
4*x2+0.3*x1+LAG1-2*LAG2>277;
x1+x2<100;
x1-2*x2 <0;
end
Global optimal solution found.
Objective value: 107.8704
Infeasibilities: 0.000000
Total solver iterations: 3
Model Class: LP
Total variables: 4
Nonlinear variables: 0
Integer variables: 0
Total constraints: 5
Nonlinear constraints: 0
Total nonzeros: 16
Nonlinear nonzeros: 0
Variable Value Reduced Cost
X1 35.37037 0.000000
X2 64.62963 0.000000
LAG1 7.870370 0.000000
LAG2 0.000000 0.9444444
Row Slack or Surplus Dual Price
1 107.8704 -1.000000
2 0.000000 -0.6851852
3 0.000000 -0.3148148
4 0.000000 0.4648148
5 93.88889 0.000000
页:
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