DfpDec
org.apache.commons.math3.dfp

Class DfpDec

  • All Implemented Interfaces:
    FieldElement<Dfp>, RealFieldElement<Dfp>


    public class DfpDecextends Dfp
    Subclass of Dfp which hides the radix-10000 artifacts of the superclass. This should give outward appearances of being a decimal number with DIGITS*4-3 decimal digits. This class can be subclassed to appear to be an arbitrary number of decimal digits less than DIGITS*4-3.
    • Constructor Detail

      • DfpDec

        public DfpDec(Dfp d)
        Copy constructor.
        Parameters:
        d - instance to copy
    • Method Detail

      • newInstance

        public Dfp newInstance()
        Create an instance with a value of 0. Use this internally in preference to constructors to facilitate subclasses
        Overrides:
        newInstance in class Dfp
        Returns:
        a new instance with a value of 0
      • newInstance

        public Dfp newInstance(byte x)
        Create an instance from a byte value.
        Overrides:
        newInstance in class Dfp
        Parameters:
        x - value to convert to an instance
        Returns:
        a new instance with value x
      • newInstance

        public Dfp newInstance(int x)
        Create an instance from an int value.
        Overrides:
        newInstance in class Dfp
        Parameters:
        x - value to convert to an instance
        Returns:
        a new instance with value x
      • newInstance

        public Dfp newInstance(long x)
        Create an instance from a long value.
        Overrides:
        newInstance in class Dfp
        Parameters:
        x - value to convert to an instance
        Returns:
        a new instance with value x
      • newInstance

        public Dfp newInstance(double x)
        Create an instance from a double value.
        Overrides:
        newInstance in class Dfp
        Parameters:
        x - value to convert to an instance
        Returns:
        a new instance with value x
      • newInstance

        public Dfp newInstance(Dfp d)
        Create an instance by copying an existing one. Use this internally in preference to constructors to facilitate subclasses.
        Overrides:
        newInstance in class Dfp
        Parameters:
        d - instance to copy
        Returns:
        a new instance with the same value as d
      • newInstance

        public Dfp newInstance(String s)
        Create an instance from a String representation. Use this internally in preference to constructors to facilitate subclasses.
        Overrides:
        newInstance in class Dfp
        Parameters:
        s - string representation of the instance
        Returns:
        a new instance parsed from specified string
      • newInstance

        public Dfp newInstance(byte sign,              byte nans)
        Creates an instance with a non-finite value.
        Overrides:
        newInstance in class Dfp
        Parameters:
        sign - sign of the Dfp to create
        nans - code of the value, must be one of Dfp.INFINITE, Dfp.SNAN, Dfp.QNAN
        Returns:
        a new instance with a non-finite value
      • nextAfter

        public Dfp nextAfter(Dfp x)
        Returns the next number greater than this one in the direction of x. If this==x then simply returns this.
        Overrides:
        nextAfter in class Dfp
        Parameters:
        x - direction where to look at
        Returns:
        closest number next to instance in the direction of x

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