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2. Presentation


Table 1: Comparison of abstract objects
HQ Polyhedra Octagons Unions Omega Intervals BDDs
HQSet Polyhedron Octagon Union Pres. formula Interval BDD
HQSysCon ConSys NA ConSys Pres. formula NA NA
HQConstraint Constraint Oct_elem Constraint Constraint NA NA
HQSysGen GenSys NA GenSys NA NA NA
HQGenerator Generator NA Generator NA NA NA
HQVariable Variable Var_t Variable Variable_ID Variable Variable
HQExpression Expression tab Expression Relation Expression Expression
HQDimension Dimension Number Dimension Variable_ID Variable_ID NA




Subsections
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Nguyen Que Duong
2006-09-16