Package org.mariuszgromada.math.mxparser.mathcollection

Class BinaryRelations

java.lang.Object
org.mariuszgromada.math.mxparser.mathcollection.BinaryRelations
public final class BinaryRelations extends Object
BinaryRelations - class for dealing with binary relations on integers or doubles.
Version:
4.1.0

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final double
    DEFAULT_COMPARISON_EPSILON
    Default epsilon for comparison

  • Constructor Summary

    Constructors
    Constructor
    Description
    BinaryRelations()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static final boolean
    checkIfEpsilonMode()
    Checks if epsilon comparison mode is active;
    static final boolean
    checkIfExactMode()
    Checks if exact comparison mode is active;
    static final double
    eq(double a, double b)
    Equality relation.
    static final double
    geq(double a, double b)
    Greater or equal relation.
    static final double
    getEpsilon()
    Returns current epsilon value.
    static final double
    gt(double a, double b)
    Greater than relation.
    static final double
    leq(double a, double b)
    Lower or equal relation.
    static final double
    lt(double a, double b)
    Lower than relation.
    static final double
    neq(double a, double b)
    Inequality relation.
    static final void
    setDefaultEpsilon()
    Sets default epsilon value.
    static final void
    setEpsilon(double epsilon)
    Sets epsilon value.
    static final void
    setEpsilonComparison()
    Sets comparison mode to EPSILON.
    static final void
    setExactComparison()
    Sets comparison mode to EXACT.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • DEFAULT_COMPARISON_EPSILON

      public static final double DEFAULT_COMPARISON_EPSILON
      Default epsilon for comparison
      See Also:

  • Constructor Details

    • BinaryRelations

      public BinaryRelations()

  • Method Details

    • setExactComparison

      public static final void setExactComparison()
      Sets comparison mode to EXACT.

    • setEpsilonComparison

      public static final void setEpsilonComparison()
      Sets comparison mode to EPSILON.

    • setEpsilon

      public static final void setEpsilon(double epsilon)
      Sets epsilon value.
      Parameters:
      epsilon - Epsilon value (grater than 0).
      See Also:

    • setDefaultEpsilon

      public static final void setDefaultEpsilon()
      Sets default epsilon value.
      See Also:

    • getEpsilon

      public static final double getEpsilon()
      Returns current epsilon value.
      Returns:
      Returns current epsilon value.
      See Also:

    • checkIfEpsilonMode

      public static final boolean checkIfEpsilonMode()
      Checks if epsilon comparison mode is active;
      Returns:
      True if epsilon mode is active, otherwise returns false.
      See Also:

    • checkIfExactMode

      public static final boolean checkIfExactMode()
      Checks if exact comparison mode is active;
      Returns:
      True if exact mode is active, otherwise returns false.
      See Also:

    • eq

      public static final double eq(double a, double b)
      Equality relation.
      Parameters:
      a - the a number (a = b)
      b - the b number (a = b)
      Returns:
      if a = Double.NaN or b = Double.NaN return Double.NaN, else if a = b return 1, otherwise return 0.

    • neq

      public static final double neq(double a, double b)
      Inequality relation.
      Parameters:
      a - the a number (a <> b)
      b - the b number (a <> b)
      Returns:
      if a = Double.NaN or b = Double.NaN return Double.NaN, else if a <> b return 1, otherwise return 0.

    • lt

      public static final double lt(double a, double b)
      Lower than relation.
      Parameters:
      a - the a number (a < b)
      b - the b number (a < b)
      Returns:
      if a = Double.NaN or b = Double.NaN return Double.NaN, else if a < b return 1, otherwise return 0.

    • gt

      public static final double gt(double a, double b)
      Greater than relation.
      Parameters:
      a - the a number (a > b)
      b - the b number (a > b)
      Returns:
      if a = Double.NaN or b = Double.NaN return Double.NaN, else if a > b return 1, otherwise return 0.

    • leq

      public static final double leq(double a, double b)
      Lower or equal relation.
      Parameters:
      a - the a number (a <= b)
      b - the b number (a <= b)
      Returns:
      if a = Double.NaN or b = Double.NaN return Double.NaN, else if a <= b return 1, otherwise return 0.

    • geq

      public static final double geq(double a, double b)
      Greater or equal relation.
      Parameters:
      a - the a number (a >= b)
      b - the b number (a >= b)
      Returns:
      if a = Double.NaN or b = Double.NaN return Double.NaN, else if a >= b return 1, otherwise return 0.