Class LinearLessThanConstraints
- java.lang.Object
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- dev.nm.solver.multivariate.constrained.constraint.linear.LinearConstraints
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- dev.nm.solver.multivariate.constrained.constraint.linear.LinearLessThanConstraints
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- All Implemented Interfaces:
Constraints
,LessThanConstraints
- Direct Known Subclasses:
UpperBoundConstraints
public class LinearLessThanConstraints extends LinearConstraints implements LessThanConstraints
This is a collection of linear less-than-or-equal-to constraints.A * x ≤ b
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Constructor Summary
Constructors Constructor Description LinearLessThanConstraints(Matrix A, Vector b)
Construct a collection of linear less-than or equal-to constraints.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Vector
getFeasibleInitialPoint()
Given a collection of linear less-than-or-equal-to constraints, find a feasible initial point that satisfy the constraints.Vector
getFeasibleInitialPoint(LinearEqualityConstraints equal)
Given a collection of linear less-than-or-equal-to constraints as well as a collection of equality constraints, find a feasible initial point that satisfy the constraints.LinearGreaterThanConstraints
toGreaterThanConstraints()
Convert the less-than or equal-to constraints to greater-than or equal-to constraints.-
Methods inherited from class dev.nm.solver.multivariate.constrained.constraint.linear.LinearConstraints
A, b, concat, dimension, getActiveConstraints, getActiveRows, getConstraints, size, toString
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface dev.nm.solver.multivariate.constrained.constraint.Constraints
dimension, getConstraints, size
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Method Detail
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toGreaterThanConstraints
public LinearGreaterThanConstraints toGreaterThanConstraints()
Description copied from interface:LessThanConstraints
Convert the less-than or equal-to constraints to greater-than or equal-to constraints.- Specified by:
toGreaterThanConstraints
in interfaceLessThanConstraints
- Returns:
- the equivalent greater-than or equal-to constraints
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getFeasibleInitialPoint
public Vector getFeasibleInitialPoint(LinearEqualityConstraints equal)
Given a collection of linear less-than-or-equal-to constraints as well as a collection of equality constraints, find a feasible initial point that satisfy the constraints. This implementation solves eq. 11.25 in the reference. The first (n-1) entries consist of a feasible initial point. The last entry is the single point perturbation.- Parameters:
equal
- a collection of linear equality constraints- Returns:
- a feasible initial point, and the single point perturbation (in one vector)
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getFeasibleInitialPoint
public Vector getFeasibleInitialPoint()
Given a collection of linear less-than-or-equal-to constraints, find a feasible initial point that satisfy the constraints. This implementation solves eq. 11.25 in the reference. The first (n-1) entries consist of a feasible initial point. The last entry is the single point perturbation.- Returns:
- a feasible initial point, and the single point perturbation (in one vector)
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