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305bcd56a3
* Implement GSCSTableau, GSCSEditInfo, GSCSEditVariableManager * Update GSTableau based on feedback * Remove adding expression term variable to external parameteric variables
147 lines
No EOL
4.6 KiB
Objective-C
147 lines
No EOL
4.6 KiB
Objective-C
/* Copyright (C) 2023 Free Software Foundation, Inc.
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By: Benjamin Johnson
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Date: 12-6-2023
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This file is part of the GNUstep Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110 USA.
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*/
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#import "GSCSLinearExpression.h"
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#import "GSCSVariable.h"
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#import <Foundation/Foundation.h>
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#ifndef _GS_CS_TABLEAU_H
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#define _GS_CS_TABLEAU_H
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@interface GSCSTableau : NSObject
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{
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NSMutableSet *_externalParametricVariables;
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NSMapTable *_rows;
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NSMapTable *_columns;
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NSMapTable *_externalRows;
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NSMutableArray *_infeasibleRows;
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GSCSVariable *_objective;
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}
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#if GS_HAS_DECLARED_PROPERTIES
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@property (nonatomic, assign) GSCSVariable *objective;
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#else
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- (GSCSVariable *) objective;
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- (void) setObjective: (GSCSVariable *)objective;
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#endif
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#if GS_HAS_DECLARED_PROPERTIES
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@property (nonatomic, assign) NSMapTable *externalRows;
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#else
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- (NSMapTable *) externalRows;
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- (void) setExternalRows: (NSMapTable *)externalRows;
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#endif
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#if GS_HAS_DECLARED_PROPERTIES
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@property (nonatomic, assign) NSMutableArray *infeasibleRows;
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#else
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- (NSMutableArray *) infeasibleRows;
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- (void) setInfeasibleRows: (NSMutableArray *)infeasibleRows;
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#endif
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- (void) addRowForVariable: (GSCSVariable *)variable
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equalsExpression: (GSCSLinearExpression *)expression;
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- (void) removeRowForVariable: (GSCSVariable *)variable;
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- (BOOL) hasRowForVariable: (GSCSVariable *)variable;
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- (void) substituteOutVariable: (GSCSVariable *)variable
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forExpression: (GSCSLinearExpression *)expression;
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- (void) substituteOutTerm: (GSCSVariable *)term
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withExpression: (GSCSLinearExpression *)newExpression
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inExpression: (GSCSLinearExpression *)expression
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subject: (GSCSVariable *)subject;
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- (BOOL) isBasicVariable: (GSCSVariable *)variable;
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- (void) addVariable: (GSCSVariable *)variable
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toExpression: (GSCSLinearExpression *)expression;
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- (void) addVariable: (GSCSVariable *)variable
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toExpression: (GSCSLinearExpression *)expression
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withCoefficient: (CGFloat)coefficient;
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- (void) addVariable: (GSCSVariable *)variable
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toExpression: (GSCSLinearExpression *)expression
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withCoefficient: (CGFloat)coefficient
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subject: (GSCSVariable *)subject;
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- (void) setVariable: (GSCSVariable *)variable
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onExpression: (GSCSLinearExpression *)expression
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withCoefficient: (CGFloat)coefficient;
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- (void) addNewExpression: (GSCSLinearExpression *)newExpression
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toExpression: (GSCSLinearExpression *)existingExpression
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n: (CGFloat)n
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subject: (GSCSVariable *)subject;
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- (void) addNewExpression: (GSCSLinearExpression *)newExpression
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toExpression: (GSCSLinearExpression *)existingExpression;
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- (void) addMappingFromExpressionVariable: (GSCSVariable *)columnVariable
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toRowVariable: (GSCSVariable *)rowVariable;
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- (void) removeColumn: (GSCSVariable *)variable;
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- (BOOL) hasColumnForVariable: (GSCSVariable *)variable;
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- (NSSet *) columnForVariable: (GSCSVariable *)variable;
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- (GSCSLinearExpression *) rowExpressionForVariable: (GSCSVariable *)variable;
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- (void) changeSubjectOnExpression: (GSCSLinearExpression *)expression
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existingSubject: (GSCSVariable *)existingSubject
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newSubject: (GSCSVariable *)newSubject;
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- (void) pivotWithEntryVariable: (GSCSVariable *)entryVariable
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exitVariable: (GSCSVariable *)exitVariable;
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- (BOOL) hasInfeasibleRows;
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- (BOOL) containsExternalParametricVariableForEveryExternalTerm;
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- (BOOL) containsExternalRowForEachExternalRowVariable;
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- (NSArray *) substitedOutNonBasicPivotableVariables:
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(GSCSVariable *)objective;
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- (GSCSVariable *) findPivotableExitVariable: (GSCSVariable *)entryVariable;
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- (GSCSVariable *)
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findExitVariableForEquationWhichMinimizesRatioOfRestrictedVariables:
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(GSCSVariable *)constraintMarkerVariable;
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- (GSCSVariable *) findNonBasicVariables;
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- (GSCSVariable *) findPivotableExitVariableWithoutCheck:
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(GSCSVariable *)entryVariable;
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@end
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#endif |