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picture1_Programming Pdf 176197 | Lp Item Download 2023-01-28 14-38-12


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File: Programming Pdf 176197 | Lp Item Download 2023-01-28 14-38-12
linear programming the ultimate practical problemsolving model what is linear programming the process of minimizing a linear objective function subject to a finite number of linear equality and inequality constraints ...

icon picture PDF Filetype PDF | Posted on 28 Jan 2023 | 2 years ago
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   Linear programming: the ultimate 
   practical problem‐solving model 
                What is Linear programming?
          •  The process of minimizing a linear objective function subject 
             to a finite number of linear equality and inequality 
             constraints. 
          •  The word “programming” is historical and predates computer 
             programming. 
          •  Quintessential tool for optimal allocation of scarce resources, 
             among a number of competing activities.
          •  Why significant? 
              – Widely applicable problem‐solving model 
              – Dominates world of industry. 
              – Fast commercial solvers available: CPLEX, OSL 
              – Ranked among most important scientific advances of 20th century
                      An Example: the Diet Problem
          •  Design a lowest cost diet that provides sufficient protein, with 
             two choices:
              – steak: 2 units of protein/pound, $3/pound
              – peanut butter: 1 unit of protein/pound, $2/pound
          •  Proper diet needs 4 units protein/day.
          Let ݔ = # pounds steak/day in the diet.
          Let ݕ = # pounds peanut butter/day in the diet. 
          Goal:            minimize 3ݔ ൅2ݕ
          Subject to the constraint:  2ݔ ൅ ݕ ൒ 4
                                        ݔ൒0,ݕ൒0
   Solving this problem geometrically
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...Linear programming the ultimate practical problemsolving model what is process of minimizing a objective function subject to finite number equality and inequality constraints word historical predates computer quintessential tool for optimal allocation scarce resources among competing activities why significant widely applicable dominates world industry fast commercial solvers available cplex osl ranked most important scientific advances th century an example diet problem design lowest cost that provides sufficient protein with two choices steak units pound peanut butter unit proper needs day let pounds in goal minimize constraint solving this geometrically...

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