exam0702.ltx

lingo源程序,帮助求解线性和非线性规划问题,将复杂问题建模,会变得很简单.

! 3 Warehouse, 4 Customer Transportation Problem
! The objective
min   6x11 + 2x12 + 6x13 + 7x14
    + 4x21 + 9x22 + 5x23 + 3x24
    + 8x31 + 8x32 +  x33 + 5x34
subject to
! The supply constraints
2)  x11 + x12 + x13 + x14 <= 30
3)  x21 + x22 + x23 + x24 <= 25
4)  x31 + x32 + x33 + x34 <= 21
! The demand constraints
5)  x11 + x21 + x31 = 15
6)  x12 + x22 + x32 = 17
7)  x13 + x23 + x33 = 22
8)  x14 + x24 + x34 = 12
end