net.ldvsoft.simplex_lp_solver

Class LpVariable

net.ldvsoft.simplex_lp_solver.LpVariable

All Implemented Interfaces:

LpExpressionLike

public class LpVariable
implements LpExpressionLike

Variable in linear programming problem. Has a unique name. By default, variables are limited not to be negative. If needed, one can set canBeNegative to allow negative values by adding another internal variable responsible for negative values.

Implements interface LpExpressionLike interface so it can be used as a standalone linear expression.

See Also:

interface LpExpressionLike

Constructor Summary

Constructors

Constructor and Description
LpVariable(java.lang.String name, boolean canBeNegative) Variable in linear programming problem. Has a unique name. By default, variables are limited not to be negative. If needed, one can set canBeNegative to allow negative values by adding another internal variable responsible for negative values.

Method Summary

Modifier and Type	Method and Description
java.lang.String	component1() Variable name.
boolean	component2() Can this variable assume negative values,
LpVariable	copy(java.lang.String name, boolean canBeNegative) Variable in linear programming problem. Has a unique name. By default, variables are limited not to be negative. If needed, one can set canBeNegative to allow negative values by adding another internal variable responsible for negative values.
boolean	equals(java.lang.Object p)
boolean	getCanBeNegative() Can this variable assume negative values,
double	getFree() Freestanding term.
java.lang.String	getName() Variable name.
java.util.Map<net.ldvsoft.simplex_lp_solver.LpVariable,java.lang.Double>	getTerms() Terms of linear expression: mapping from variables to their coefficients.
int	hashCode()
java.lang.String	toString()

Methods inherited from interface net.ldvsoft.simplex_lp_solver.LpExpressionLike

getFree, getTerms

Constructor Detail

LpVariable

public LpVariable(java.lang.String name,
                  boolean canBeNegative)

Variable in linear programming problem. Has a unique name. By default, variables are limited not to be negative. If needed, one can set canBeNegative to allow negative values by adding another internal variable responsible for negative values.

Implements interface LpExpressionLike interface so it can be used as a standalone linear expression.

Parameters:

name - Variable name.

canBeNegative - Can this variable assume negative values, defaults to false.

name - Variable name.

canBeNegative - Can this variable assume negative values, defaults to false.

See Also:

interface LpExpressionLike

Method Detail

getTerms

public java.util.Map<net.ldvsoft.simplex_lp_solver.LpVariable,java.lang.Double> getTerms()

Terms of linear expression: mapping from variables to their coefficients.

getFree

public double getFree()

Freestanding term.

getName

public java.lang.String getName()

Variable name.

getCanBeNegative

public boolean getCanBeNegative()

Can this variable assume negative values,

defaults to false.

component1

public java.lang.String component1()

Variable name.

component2

public boolean component2()

Can this variable assume negative values,

defaults to false.

copy

public LpVariable copy(java.lang.String name,
                       boolean canBeNegative)

Variable in linear programming problem. Has a unique name. By default, variables are limited not to be negative. If needed, one can set canBeNegative to allow negative values by adding another internal variable responsible for negative values.

Implements interface LpExpressionLike interface so it can be used as a standalone linear expression.

Parameters:

name - Variable name.

canBeNegative - Can this variable assume negative values, defaults to false.

See Also:

interface LpExpressionLike

toString

public java.lang.String toString()

hashCode

public int hashCode()

equals

public boolean equals(java.lang.Object p)