急!急!急!利用LINGO解决下面线性规划问题!求高手!max=x1*y1+x2*y3+x3*y3+x4*y4;((482-y1)/482)/((x1-297)/297)=0.4;((32-y2)/32)/((x2-720)/720)=2.7;((21-y3)/21)/((x3-1050)/1050)=1.1;((7-y4)/7)/((x4-815)/815)=0.4;((y3-21)/21)/((x4-815)/815)=
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![急!急!急!利用LINGO解决下面线性规划问题!求高手!max=x1*y1+x2*y3+x3*y3+x4*y4;((482-y1)/482)/((x1-297)/297)=0.4;((32-y2)/32)/((x2-720)/720)=2.7;((21-y3)/21)/((x3-1050)/1050)=1.1;((7-y4)/7)/((x4-815)/815)=0.4;((y3-21)/21)/((x4-815)/815)=](/uploads/image/z/7198444-28-4.jpg?t=%E6%80%A5%21%E6%80%A5%21%E6%80%A5%21%E5%88%A9%E7%94%A8LINGO%E8%A7%A3%E5%86%B3%E4%B8%8B%E9%9D%A2%E7%BA%BF%E6%80%A7%E8%A7%84%E5%88%92%E9%97%AE%E9%A2%98%21%E6%B1%82%E9%AB%98%E6%89%8B%21max%3Dx1%2Ay1%2Bx2%2Ay3%2Bx3%2Ay3%2Bx4%2Ay4%3B%28%28482-y1%29%2F482%29%2F%28%28x1-297%29%2F297%29%3D0.4%3B%28%2832-y2%29%2F32%29%2F%28%28x2-720%29%2F720%29%3D2.7%3B%28%2821-y3%29%2F21%29%2F%28%28x3-1050%29%2F1050%29%3D1.1%3B%28%287-y4%29%2F7%29%2F%28%28x4-815%29%2F815%29%3D0.4%3B%28%28y3-21%29%2F21%29%2F%28%28x4-815%29%2F815%29%3D)
急!急!急!利用LINGO解决下面线性规划问题!求高手!max=x1*y1+x2*y3+x3*y3+x4*y4;((482-y1)/482)/((x1-297)/297)=0.4;((32-y2)/32)/((x2-720)/720)=2.7;((21-y3)/21)/((x3-1050)/1050)=1.1;((7-y4)/7)/((x4-815)/815)=0.4;((y3-21)/21)/((x4-815)/815)=
急!急!急!利用LINGO解决下面线性规划问题!求高手!
max=x1*y1+x2*y3+x3*y3+x4*y4;
((482-y1)/482)/((x1-297)/297)=0.4;
((32-y2)/32)/((x2-720)/720)=2.7;
((21-y3)/21)/((x3-1050)/1050)=1.1;
((7-y4)/7)/((x4-815)/815)=0.4;
((y3-21)/21)/((x4-815)/815)=0.1;
((y4-7)/7)/((x3-1050)/1050)=0.4;
s4y1+80y2+35y3+25y4
急!急!急!利用LINGO解决下面线性规划问题!求高手!max=x1*y1+x2*y3+x3*y3+x4*y4;((482-y1)/482)/((x1-297)/297)=0.4;((32-y2)/32)/((x2-720)/720)=2.7;((21-y3)/21)/((x3-1050)/1050)=1.1;((7-y4)/7)/((x4-815)/815)=0.4;((y3-21)/21)/((x4-815)/815)=
写成这样到lingo里面运行一下就行了 自己检查一下有没有系数错误
max=x1*y1+x2*y3+x3*y3+x4*y4;
(482-y1)/482=0.4*(x1-297)/297;
(32-y2)/32=2.7*(x2-720)/720;
(21-y3)/21=1.1*(x3-1050)/1050;
(7-y4)/7=0.4*(x4-815)/815;
(y3-21)/21=0.1*(x4-815)/815;
(y4-7)/7=0.4*(x3-1050)/1050;
4*y1+80*y2+35*y3+25*y4