In a model containing two variables X and Y, where X is a positive continuous value and Y is binary integer, we wish to include the constraint that Y becomes 1 when X > 20. There is a cost attached to Y in the objective function, so it would stay at 0 unless forced to be 1. The correct way to model this constraint as a linear relationship is: ○ (X-20) (1-Y) ≥0 XY ≥ 20 OY (X-20) where M is a sufficiently large positive number. O (X-20) (Y-1)=0 O Y=IF(X > 20,1,0) OY≥
In a model containing two variables X and Y, where X is a positive continuous value and Y is binary integer, we wish to include the constraint that Y becomes 1 when X > 20. There is a cost attached to Y in the objective function, so it would stay at 0 unless forced to be 1. The correct way to model this constraint as a linear relationship is: ○ (X-20) (1-Y) ≥0 XY ≥ 20 OY (X-20) where M is a sufficiently large positive number. O (X-20) (Y-1)=0 O Y=IF(X > 20,1,0) OY≥
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section: Chapter Questions
Problem 4PT
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