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[交流] 关于优化工具中约束条件的表达

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发表于 2009-5-21 16:44:46 | 显示全部楼层 |阅读模式
EXTEND中的优化工具中的约束条件如果是含有>=或者<=的数学式子,该如何表示?
发表于 2009-5-21 20:36:24 | 显示全部楼层
个人想法:
1 f8 w% O* o: s: z/ D约束条件是在上面的Table里面直接输入最大最小值吧。
( r: M; y4 R, N( vMinimum Limit: Table Column 5: The minimum value that this variable can be set to by the Optimizer block. If it is entered without a decimal point, it can only assume integer values. Do not enter limits for variables that are used as results from the model (i.e. Exited from an Exit block).: H8 B- _7 F  i& s$ K  Q

5 i4 O$ a, e" Z! j, M7 IMaximum Limit: Table Column 6: The maximum value that this variable can be set to by the Optimizer block. If it is entered without a decimal point, it can only assume integer values. Do not enter limits for variables that are used as results from the model (i.e. Exited from an Exit block).
5 |1 {. f* `/ f3 e- c; b% ~下面的Equation栏里面应该写入目标函数吧。
4 H! Y* @( H8 {/ O9 JMaxProfit (MiniCost)= Var0 + Var1 + Var2;
发表于 2009-5-22 16:37:01 | 显示全部楼层
哦,搞错了,抱歉
5 v% A2 @6 N% l* U) Y不等式都是在条件里面如
4 }1 F2 x6 c, K+ E& y* W/ }( xif (DelTankSize >= 6000 && DeliveryTimes < 60)
& ]( M2 M! [" O/ g- @: b& v8 sReject = TRUE;  //  你的意思是这个地方是不等式的情况吗?手册里好像没有这样的说明。
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