介绍p83二题之建模.pdf

P83第二题

(1)

max=21*x1+11*x2+1*x3+31*x4+21*x5+11*x6+41*x7+31*x8+21*x9;

x1+x2+x3+x4+x5+x6+x7+x8+x9=14000;

x1+x2+x3=5000;

x4+x5+x6=5000;

x7+x8+x9=5000;

-2*x1+4*x4+x7=0;

-4*x2+2*x5=0;

-6*x3-3*x9=0;

-0.5*x1+x4+2*x7=0;

-1.5*x2+x8=0;

-0.5*x3+x6+2*x9=0;

x1+x4+x7=3000;

x2+x5+x8=2000;

x3+x6+x9=1000;

（2）

max=21*x1+21*x2+21*x3+21*x4+21*x5+21*x6+21*x7+21*x8+21*x9-x10;

x1+x2+x3=5000;

x4+x5+x6=5000;

x7+x8+x9=5000;

-2*x1+4*x4+2*x7=0;

-4*x2+2*x5=0;

-6*x3-3*x9=0;

-0.5*x1+x4+2*x7=0;

-1.5*x2+x8=0;

-0.5*x3+x6+2*x9=0;

x1+x4+x7-x11=3000;

x2+x5+x8-x12=2000;

x3+x6+x9-x13=1000;

10*x10-x11-x12-x13=0;

x10=800;

-x10=0;

-x11=0;

-x12=0;

-x13=0;

@gin(x10);@gin(x1);@gin(x2);@gin(3);@gin(4);@gin(5);@gin(x6);@gin(x7)

;@gin(x8);@gin(x9);