华东交通大学：《数学模型》课程教学资源（讲义）投资效益问题的源程序及运行结果

投资效益问题的源程序及运行结果 max0.5x1+04x2+0.6x3+0.5x4+0.9x5+x6 5x1+2x2+6x3+4x4+6x5+8x6<22 LP OPTIMUM FOUND AT STEP OBJECTIVE VALUE 3 00000000 NEW INTEGER SOLUTION OF 2.90000010 AT BRANCH0PVOT(支点) RE-INSTALLING BEST SOLUTION OBJECTIVE FUNCTION VALUE 2.900000 VARIABLE VALUE REDUCED COST 0.000000 -0.500000 1.000000 -0.400000 1.000000 0.600000 X4 0.000000 -0.500000 1.000000 -0.900000 1000000 1.000000 ROW SLACK OR SURPLUS DUAL PRICES 0.000000 0.000000 NO ITERATIONS BRANCHES= O DETERM= 1000 0

投资效益问题的源程序及运行结果 max 0.5x1+0.4x2+0.6x3+0.5x4+0.9x5+x6 st 5x1+2x2+6x3+4x4+6x5+8x6<22 end int 6 LP OPTIMUM FOUND AT STEP 5 OBJECTIVE VALUE = 3.00000000 NEW INTEGER SOLUTION OF 2.90000010 AT BRANCH 0 PIVOT(支点) 5 RE-INSTALLING BEST SOLUTION... OBJECTIVE FUNCTION VALUE 1) 2.900000 VARIABLE VALUE REDUCED COST X1 0.000000 -0.500000 X2 1.000000 -0.400000 X3 1.000000 -0.600000 X4 0.000000 -0.500000 X5 1.000000 -0.900000 X6 1.000000 -1.000000 ROW SLACK OR SURPLUS DUAL PRICES 2) 0.000000 0.000000 NO. ITERATIONS= 5 BRANCHES= 0 DETERM.= 1.000E 0