【2017年整理】数学建模公选课第二讲.ppt

Optimization terminated successfully. x = 41.9176 28.0824 35.0494 14.9506 9.8606 20.1394 fval = 150.0000 结果如下: Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 解 编写M文件xxgh1.m如下： c=[-70;-120]; A=[9 4;4 5;3 10]; b=[360;200;300]; Aeq=[]; beq=[]; Vlb=[0;0]; Vub=[]; [x,fval]=linprog(c,A,b,Aeq,beq,Vlb,Vub) To Matlab (xxgh1) 例2： Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Optimization terminated successfully. x = 20.0000 24.0000 fval = -4.2800e+003? 结果如下: Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 例3 解: 编写M文件xxgh2.m如下： f = [13 9 10 11 12 8]; A = [0.4 1.1 1 0 0 0 0 0 0 0.5 1.2 1.3]; b = [800; 900]; Aeq=[1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 0 1]; beq=[400 600 500]; vlb = zeros(6,1); vub=[]; [x,fval] = linprog(f,A,b,Aeq,beq,vlb,vub) [x,fval]=linprog(c,A,b,Aeq,beq,vlb,vub) Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Optimization terminated successfully. x = 0.0000 600.0000 0.0000 400.0000 0.0000 500.0000 fval = 1.3800e+004 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 企业生产计划 生产与销售计划 空间层次 工厂级：根据外部需求和内部设备、人力、原料等条件，以最大利润为目标制订产品生产计划； 车间级：根据生产计划、工艺流程、资源约束及费用参数等，以最小成本为目标制订生产批量计划。 时间层次 若短时间内外部需求和内部资源等不随时间变化，可制订单阶段生产计划，否则应制订多阶段生产计划。 本节课题 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 例：一奶制品加工厂用牛奶生产A1、A2两种奶制品。一桶牛奶可以在甲类设备上用12小时加工成3公斤A1，或者在乙类设备上用8小时加工成4公斤A2。根据市场需求，生产的A1、A2可以全部售出。每公斤A1获利24元，每公斤A2获利16元。现在每天有50桶牛奶的供应。每天正式工人总的工作时间为480小时，并且甲类设备每天至多能加工100公斤A1，乙类