exam0602.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.

MAX     9X1 + 4.5X2 + 3X3 + 2.25X4 + 15Y1 + 8Y2 + 5Y3 + 3Y4
      - 2BX - 1.5AY - A1 - 2A2 - 3A3 - 4A4 - 2B1 - 4B2 - 6B3 
      - 8B4 
SUBJECT TO
 2)   - AY + A1 + A2 + A3 + A4 - AX = 0    
 3)   - BX + B1 + B2 + B3 + B4 - BY = 0    
 4)   - X1 - X2 - X3 - X4 + BX + AX = 0   
 5)   - Y1 - Y2 - Y3 - Y4 + AY + BY = 0   
END
SUB A1 2 
SUB A2 2
SUB A3 2
SUB A4 2 
SUB X1 2
SUB X2 2
SUB X3 2
SUB X4 2
SUB B1 1 
SUB B2 3
SUB B3 4
SUB B4 4 
SUB Y1 1
SUB Y2 2
SUB Y3 3
SUB Y4 4