《运筹学》一二章课后题

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1、二．用计算机求解第一、二章作业1.第一章课后题2.LPOPTIMUMFOUNDATSTEP1OBJECTIVEFUNCTIONVALUE1)18.00000VARIABLEVALUEREDUCEDCOSTX12.0000000.000000X23.0000000.000000X30.00000010.000000X40.0000007.000000X56.0000000.000000ROWSLACKORSURPLUSDUALPRICES2)0.000000-10.0000003)0.0000007.0000004)0.0000000.000000NO.ITERATIONS=1

2、RANGESINWHICHTHEBASISISUNCHANGED:OBJCOEFFICIENTRANGESVARIABLECURRENTALLOWABLEALLOWABLECOEFINCREASEDECREASEX13.000000INFINITY5.000000X24.000000INFINITY7.000000X30.00000010.000000INFINITYX40.0000007.000000INFINITYX50.000000INFINITY2.333333RIGHTHANDSIDERANGESROWCURRENTALLOWABLEALLOWABLERHSINCR

3、EASEDECREASE21.0000001.000000INFINITY34.000000INFINITY2.00000042.0000006.000000INFINITY3（1）LPOPTIMUMFOUNDATSTEP1OBJECTIVEFUNCTIONVALUE1)0.0000000E+00VARIABLEVALUEREDUCEDCOSTX10.0000000.000000X20.0000002.000000ROWSLACKORSURPLUSDUALPRICES2)2.0000000.0000003)6.0000000.0000004)0.0000001.0000005

4、)0.0000000.000000NO.ITERATIONS=1RANGESINWHICHTHEBASISISUNCHANGED:OBJCOEFFICIENTRANGESVARIABLECURRENTALLOWABLEALLOWABLECOEFINCREASEDECREASEX1-1.0000001.000000INFINITYX22.000000INFINITY2.000000RIGHTHANDSIDERANGESROWCURRENTALLOWABLEALLOWABLERHSINCREASEDECREASE2-2.0000002.000000INFINITY36.00000

5、0INFINITY6.00000040.0000006.0000000.00000050.000000INFINITY0.000000（3）（4）LPOPTIMUMFOUNDATSTEP2OBJECTIVEFUNCTIONVALUE1)18.00000VARIABLEVALUEREDUCEDCOSTX10.6666670.000000X22.6666670.000000ROWSLACKORSURPLUSDUALPRICES2)0.0000000.0000003)0.0000003.0000004)0.6666670.0000005)2.6666670.000000NO.ITE

6、RATIONS=2RANGESINWHICHTHEBASISISUNCHANGED:OBJCOEFFICIENTRANGESVARIABLECURRENTALLOWABLEALLOWABLECOEFINCREASEDECREASEX13.0000000.0000009.000000X26.000000INFINITY0.000000RIGHTHANDSIDERANGESROWCURRENTALLOWABLEALLOWABLERHSINCREASEDECREASE2-2.0000008.0000001.00000036.000000INFINITY2.00000040.0000

7、000.666667INFINITY50.0000002.666667INFINITY（6）7（2）LPOPTIMUMFOUNDATSTEP2OBJECTIVEFUNCTIONVALUE1)25.00000VARIABLEVALUEREDUCEDCOSTX115.0000000.000000X25.0000000.000000X30.0000001.500000ROWSLACKORSURPLUSDUALPRICES2)10.0000000.0000003)0.0000001.5000004)0.0000