java.lang.Object
- java.lang.Number
- - gnu.math.Numeric
  - - gnu.math.Quantity
    - - gnu.math.Quaternion
      - gnu.math.Complex
        
        gnu.math.RealNum
        
        gnu.math.DFloNum

All Implemented Interfaces:

Externalizable, Serializable, Comparable
```
public class DFloNum
extends RealNum
implements Externalizable
```
See Also:

Serialized Form

Field Summary
- Fields inherited from class gnu.math.Numeric
  CEILING, FLOOR, NONNEG_MOD, ROUND, TRUNCATE

Constructor Summary

Constructors
Constructor Description

DFloNum()

DFloNum(double value)

DFloNum(String s)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`Numeric`	`add(Object y, int k)`	Return this + k * obj.
`Numeric`	`addReversed(Numeric x, int k)`	Calculate `x+k&this`.
`static DFloNum`	`asDFloNumOrNull(Object value)`
`static int`	`compare(double x, double y)`
`static int`	`compare(IntNum x_num, IntNum x_den, double y)`	Compare (x_num/x_den) with toExact(y).
`int`	`compare(Object obj)`	Return an integer for which of `this` or `obj` is larger.
`int`	`compareReversed(Numeric x)`
`Numeric`	`div(Object y)`
`Numeric`	`divReversed(Numeric x)`
`double`	`doubleValue()`	The value of the real component, as a double.
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`boolean`	`isExact()`
`boolean`	`isNegative()`
`boolean`	`isZero()`
`long`	`longValue()`
`static DFloNum`	`make(double value)`	Deprecated.
`Numeric`	`mul(Object y)`
`Numeric`	`mulReversed(Numeric x)`
`Numeric`	`neg()`
`static DFloNum`	`one()`
`Numeric`	`power(IntNum y)`	Return this raised to an integer power.
`void`	`readExternal(ObjectInput in)`
`int`	`sign()`	Return 1 if `>0`; 0 if `==0`; -1 if `<0`; -2 if `NaN`.
`static RatNum`	`toExact(double value)`	Converts to the closest exact rational value.
`String`	`toString()`
`static String`	`toString(double value)`
`String`	`toString(int radix)`
`static DFloNum`	`valueOf(double value)`
`void`	`writeExternal(ObjectOutput out)`
`static DFloNum`	`zero()`

Methods inherited from class gnu.math.RealNum
abs, add, angle, asBigDecimal, asRealNumOrNull, classifyFinite, compareTo, conjugate, cos, divide, exp, im, isReal, log, max, min, re, rneg, sin, sqrt, tan, times, toExact, toExactInt, toExactInt, toExactInt, toInexact, toInt, toInt, toScaledInt, toScaledInt, toScaledInt, toStringDecimal, toStringScientific, toStringScientific, toStringScientific, toStringScientific, unitQuaternion, unitVector, vectorPart

Methods inherited from class gnu.math.Complex
add, colatitude, compare, complexPart, divide, equals, imMinusOne, imOne, jm, km, longitude, make, make, neg, polar, polar, power, times

Methods inherited from class gnu.math.Quaternion
add, compare, divide, doubleImagValue, doubleJmagValue, doubleKmagValue, doubleRealValue, equals, jmMinusOne, jmOne, kmMinusOne, kmOne, make, make, neg, number, polar, polar, power, times

Methods inherited from class gnu.math.Quantity
add, compare, dimensions, divide, imValue, jmValue, kmValue, make, make, make, reValue, times, unit

Methods inherited from class gnu.math.Numeric
add, asNumericOrNull, div_inv, floatValue, geq, grt, intValue, mul_ident, sub

Methods inherited from class java.lang.Number
byteValue, shortValue

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DFloNum
```
public DFloNum()
```
  - DFloNum
```
public DFloNum(double value)
```
  - DFloNum
```
public DFloNum(String s)
        throws NumberFormatException
```
    Throws:
    
    NumberFormatException
- Method Detail
  - make
```
@Deprecated
public static DFloNum make(double value)
```
    Deprecated.
  - valueOf
```
public static DFloNum valueOf(double value)
```
  - zero
```
public static DFloNum zero()
```
  - asDFloNumOrNull
```
public static DFloNum asDFloNumOrNull(Object value)
```
  - doubleValue
```
public final double doubleValue()
```
    Description copied from class: Quantity
    
    The value of the real component, as a double. This is relative to the unit().dims - i.e. unit()/doubleValue() is factored in.
    
    Overrides:
    
    doubleValue in class Quaternion
  - longValue
```
public long longValue()
```
    Overrides:
    
    longValue in class Quaternion
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Complex
  - add
```
public Numeric add(Object y,
                   int k)
```
    Description copied from class: Numeric
    
    Return this + k * obj.
    
    Specified by:
    
    add in class RealNum
  - addReversed
```
public Numeric addReversed(Numeric x,
                           int k)
```
    Description copied from class: Numeric
    
    Calculate x+k&this.
    
    Overrides:
    
    addReversed in class Complex
  - mul
```
public Numeric mul(Object y)
```
    Specified by:
    
    mul in class RealNum
  - mulReversed
```
public Numeric mulReversed(Numeric x)
```
    Overrides:
    
    mulReversed in class Complex
  - one
```
public static final DFloNum one()
```
  - div
```
public Numeric div(Object y)
```
    Specified by:
    
    div in class RealNum
  - divReversed
```
public Numeric divReversed(Numeric x)
```
    Overrides:
    
    divReversed in class Complex
  - power
```
public Numeric power(IntNum y)
```
    Description copied from class: Numeric
    
    Return this raised to an integer power. Implemented by repeated squaring and multiplication. If y < 0, returns div_inv of the result.
    
    Overrides:
    
    power in class Numeric
  - isNegative
```
public boolean isNegative()
```
    Specified by:
    
    isNegative in class RealNum
  - neg
```
public Numeric neg()
```
    Overrides:
    
    neg in class Complex
  - sign
```
public int sign()
```
    Description copied from class: RealNum
    
    Return 1 if >0; 0 if ==0; -1 if <0; -2 if NaN.
    
    Specified by:
    
    sign in class RealNum
  - compare
```
public static int compare(double x,
                          double y)
```
  - compare
```
public static int compare(IntNum x_num,
                          IntNum x_den,
                          double y)
```
    Compare (x_num/x_den) with toExact(y).
  - compare
```
public int compare(Object obj)
```
    Description copied from class: Numeric
    
    Return an integer for which of this or obj is larger. Return 1 if this>obj; 0 if this==obj; -1 if this<obj; -2 if this!=obj otherwise (for example if either is NaN); -3 if not comparable (incompatible types).
    
    Overrides:
    
    compare in class Complex
  - compareReversed
```
public int compareReversed(Numeric x)
```
    Overrides:
    
    compareReversed in class Quantity
  - isExact
```
public boolean isExact()
```
    Overrides:
    
    isExact in class Complex
  - isZero
```
public boolean isZero()
```
    Overrides:
    
    isZero in class RealNum
  - toExact
```
public static RatNum toExact(double value)
```
    Converts to the closest exact rational value.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Numeric
  - toString
```
public static String toString(double value)
```
  - toString
```
public String toString(int radix)
```
    Overrides:
    
    toString in class Complex
  - writeExternal
```
public void writeExternal(ObjectOutput out)
                   throws IOException
```
    Specified by:
    
    writeExternal in interface Externalizable
    
    Throws:
    
    IOException
  - readExternal
```
public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException
```
    Specified by:
    
    readExternal in interface Externalizable
    
    Throws:
    
    IOException
    
    ClassNotFoundException

Constructors
Constructor	Description
`DFloNum()`
`DFloNum(double value)`
`DFloNum(String s)`

Class DFloNum

Field Summary

Fields inherited from class gnu.math.Numeric

Constructor Summary

Method Summary

Methods inherited from class gnu.math.RealNum

Methods inherited from class gnu.math.Complex

Methods inherited from class gnu.math.Quaternion

Methods inherited from class gnu.math.Quantity

Methods inherited from class gnu.math.Numeric

Methods inherited from class java.lang.Number

Methods inherited from class java.lang.Object

Constructor Detail

DFloNum

DFloNum

DFloNum

Method Detail

make

valueOf

zero

asDFloNumOrNull

doubleValue

longValue

hashCode

equals

add

addReversed

mul

mulReversed

one

div

divReversed

power

isNegative

neg

sign

compare

compare

compare

compareReversed

isExact

isZero

toExact

toString

toString

toString

writeExternal

readExternal