[原创]谁是高手谁进来!

03910126 · 发表于 2005-8-26 05:01:54

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>小弟请进来的高手帮忙把下面的程序用MATLAB 或LINDO编出来(请附上结果),小弟刚学数模没几天,还请多多照顾!
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>题目如下:
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>Max F=0.487x11+0.52x12+0.613x13+0.72x14+0.487x15+0.52x16+0.64x17+0.487x21+ 0.52x22+0.613x23+0.72x24+0.487x25+0.52x26+0.64x27
S.T.
x11+x21<=8
x12+x22<=7
x13+x23<=9
x14+x24<=6
x15+x25<=6
x16+x26<=4
x17+x27<=8
2x11+3x12+x12+0.5x14+4x15+2x16+x17<=40
2x21+3x22+x22+0.5x24+4x25+2x26+x27<=40
0.487x11+0.52x12+0.613x13+0.72x14+0.487x15+0.52x16+0.64x17<=10.2
0.487x21+0.52x22+0.613x23+0.72x24+0.487x25+0.52x26+0.64x27<=10.2
0.487x15+0.52x16+0.64x17<=3.027
0.487x25+0.52x26+0.64x27<=3.027
x11至x27都为整数
 
若能尽快给出结果将感激不尽!

sink · 发表于 2005-8-26 05:14:37

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>LIND
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>max .487x11+0.52x12+0.613x13+0.72x14+0.487x15+0.52x16+0.64x17+0.487x21+ 0.52x22+0.613x23+0.72x24+0.487x25+0.52x26+0.64x27
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>st
x11+x21<=8
x12+x22<=7
x13+x23<=9
x14+x24<=6
x15+x25<=6
x16+x26<=4
x17+x27<=8
2x11+3x12+x13+0.5x14+4x15+2x16+x17<=40
2x21+3x22+x23+0.5x24+4x25+2x26+x27<=40
0.487x11+0.52x12+0.613x13+0.72x14+0.487x15+0.52x16+0.64x17<=10.2
0.487x21+0.52x22+0.613x23+0.72x24+0.487x25+0.52x26+0.64x27<=10.2
0.487x15+0.52x16+0.64x17<=3.027
0.487x25+0.52x26+0.64x27<=3.027
end 
gin 14
 
程序改好了,自己运行去吧,如果是做为整人用的,别在这寻开心!

娴子 · 发表于 2005-8-26 19:13:45

算出的结果不是整数怎么办啊？哪个GIN 14 有什么用吗？

03910126 · 发表于 2005-8-29 02:24:47

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>先谢了,我回去就运行,如果有问题,还请再指导一下!

03910126 · 发表于 2005-9-1 06:12:49

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>可以运行，但求不出答案？

星轨 · 发表于 2005-9-4 17:21:52

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>LINGO程序：
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>max=0.487*x11+0.52*x12+0.613*x13+0.72*x14+0.487*x15+0.52*x16+0.64*x17+0.487*x21+ 0.52*x22+0.613*x23+0.72*x24+0.487*x25+0.52*x26+0.64*x27; x11+x21<=8;
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>x12+x22<=7;
x13+x23<=9;
x14+x24<=6;
x15+x25<=6;
x16+x26<=4;
x17+x27<=8;
2*x11+3*x12+x12+0.5*x14+4*x15+2*x16+x*17<=40;
2*x21+3*x22+x22+0.5*x24+4*x25+2*x26+x27<=40;
0.487*x11+0.52*x12+0.613*x13+0.72*x14+0.487*x15+0.52*x16+0.64*x17<=10.2;
0.487*x21+0.52*x22+0.613*x23+0.72*x24+0.487*x25+0.52*x26+0.64*x27<=10.2;
0.487*x15+0.52*x16+0.64*x17<=3.027;
0.487*x25+0.52*x26+0.64*x27<=3.027;
@gin(x11); @gin(x12); @gin(x13); @gin(x14); @gin(x15); @gin(x16); @gin(x17); @gin(x21); @gin(x22); @gin(x23); @gin(x24); @gin(x25); @gin(x26); @gin(x27);
结果：20.4 Global optimal solution found at iteration: 267576 Objective value: 20.40000
 Variable Value Reduced Cost X11 6.000000 -0.4870000 X12 2.000000 -0.5200000 X13 6.000000 -0.6130000 X14 0.000000 -0.7200000 X15 0.000000 -0.4870000 X16 0.000000 -0.5200000 X17 4.000000 -0.6400000 X21 2.000000 -0.4870000 X22 5.000000 -0.5200000 X23 2.000000 -0.6130000 X24 5.000000 -0.7200000 X25 0.000000 -0.4870000 X26 1.000000 -0.5200000 X27 2.000000 -0.6400000 X 0.000000 0.000000
 Row Slack or Surplus Dual Price 1 20.40000 1.000000 2 0.000000 0.000000 3 0.000000 0.000000 4 1.000000 0.000000 5 1.000000 0.000000 6 6.000000 0.000000 7 3.000000 0.000000 8 2.000000 0.000000 9 20.00000 0.000000 10 9.500000 0.000000 11 0.000000 0.000000 12 0.000000 0.000000 13 0.4670000 0.000000 14 1.227000 0.000000

星轨 · 发表于 2005-9-4 17:25:21

但我不是高手，这是低手所做的题目，而且我没有LINDO软件，只有LINGO软件，那个人所说的GIN14其实是这十四个变量，这也看不懂，我为你悲哀啊！

j_l_chen · 发表于 2005-12-11 03:50:04

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>各位豪杰,我现在请教几道问题,如果你们谁现在线上,请恢复一下,我想请教一下有关线性规划的问题

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