lingo运行小错误：too many inequality or equality ralation

来源：学生作业帮编辑：大师作文网作业帮分类：数学作业时间：2024/11/19 08:54:06

lingo运行小错误：too many inequality or equality ralation
线性规划问题minB=800+x1+d1+g1/2-y1+a2/2+a3/2+25+x2+d2+g2/2-y2+y1+a3/2-a2/2-50+x3+d3+g3/2-y3+y2-a3/2;
x1<=500;
x2<=800;
x3<=500;
y1<=200;
y2<=950/4;
d1+d2+d3<=150;
g1+g2+g3<=50;
End
运行结果有误,请教高手应该怎样改进?

minB=800+x1+d1+g1/2-y1+a2/2+a3/2+25+x2+d2+g2/2-y2+y1+a3/2-a2/2-50+x3+d3+g3/2-y3+y2-a3/2;
简化为：
min=800+25-50+x1+x2+x3-y3+d1+d2+d3+a3/2+g1/2+g2/2+g3/2;
可见,这里的y3没有约束,即使其他各个变量取0,也不能得到最小值,除非给出y3

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