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QPair

  • All Implemented Interfaces:
    java.lang.Comparable<ComparableMapKey2<Variable,​Variable>> 
    public final class QPair
extends ComparableMapKey2<Variable,​Variable>
    Pair of variables in a quadratic expression. Instances of this class are used to represent pairs of variables in quadratic expressions. Variables in this instance are always ordered according to a canonicaly ordering, so (v1,v2) and (v2,v1) will map to the same representation. Instances can represent linear terms as well. In that case var2 is invalid and isLinear() returns true. Instances can also represent constant terms. In that case var1 and var2 are both invalid and isConstant() returns true.
    Since:
    43.00

    • Method Detail

      • isLinear

        public boolean isLinear()
        Test whether this pair represents a linear term.
        Returns:
        true if this instance represents a linear term, false otherwise.
        Since:
        43.00

      • isConstant

        public boolean isConstant()
        Test whether this pair represents a constant term.
        Returns:
        true if this instance represents a constant term, false otherwise.
        Since:
        43.00
Parent Topic Class Summary

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