java.lang.Object
- java.lang.Number
- - gnu.math.Numeric
  - - gnu.math.Quantity
    - - gnu.math.Unit

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

NamedUnit
```
public abstract class Unit
extends Quantity
```
See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`static Unit`	`cm`
`static NamedUnit`	`date`
`static Unit`	`degree`
`static BaseUnit`	`duration`
`static BaseUnit`	`Empty`
`static Unit`	`gradian`
`static BaseUnit`	`gram`
`static Unit`	`hour`
`static Unit`	`in`
`static BaseUnit`	`meter`
`static Unit`	`minute`
`static Unit`	`mm`
`static NamedUnit`	`month`
`static double`	`NON_COMBINABLE`	A magic factor to indicate units that have the same "dimension" but not a fixed multiple.
`static Unit`	`pica`
`static Unit`	`pt`
`static Unit`	`radian`
`static NamedUnit`	`second`

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

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Unit`	`define(String name, double factor, Unit base)`
`static Unit`	`define(String name, DQuantity value)`
`Dimensions`	`dimensions()`
`static Unit`	`divide(Unit unit1, Unit unit2)`
`double`	`doubleValue()`	The value of the real component, as a double.
`String`	`getName()`
`int`	`hashCode()`
`boolean`	`isExact()`
`boolean`	`isZero()`
`static NamedUnit`	`lookup(String name)`
`static NamedUnit`	`make(String name, Quantity value)`
`Complex`	`number()`
`static Unit`	`pow(Unit unit, int power)`
`Numeric`	`power(IntNum y)`	Return this raised to an integer power.
`Unit`	`sqrt()`
`static Unit`	`times(Unit unit1, Unit unit2)`
`String`	`toString()`
`String`	`toString(double val)`
`String`	`toString(RealNum val)`
`Unit`	`unit()`

Methods inherited from class gnu.math.Quantity
abs, add, add, addReversed, compare, compare, compareReversed, div, divide, divReversed, doubleImagValue, doubleJmagValue, doubleKmagValue, im, imValue, jm, jmValue, km, kmValue, make, make, make, mul, mulReversed, neg, re, reValue, times, toString

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

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

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

Field Detail

Empty
```
public static BaseUnit Empty
```

NON_COMBINABLE
```
public static double NON_COMBINABLE
```
A magic factor to indicate units that have the same "dimension" but not a fixed multiple. E.g. "month" and "day", or money of different currencies. Since they have the same dimension, they can be added to get an (unimplemented) combined quantity, but they cannot be compared. No general support yet, but used for time Duration.

meter
```
public static final BaseUnit meter
```

duration
```
public static final BaseUnit duration
```

gram
```
public static final BaseUnit gram
```

cm
```
public static final Unit cm
```

mm
```
public static final Unit mm
```

in
```
public static final Unit in
```

pt
```
public static final Unit pt
```

pica
```
public static final Unit pica
```

radian
```
public static final Unit radian
```

degree
```
public static final Unit degree
```

gradian
```
public static final Unit gradian
```

date
```
public static final NamedUnit date
```

second
```
public static final NamedUnit second
```

month
```
public static final NamedUnit month
```

minute
```
public static final Unit minute
```

hour
```
public static final Unit hour
```

Method Detail

dimensions
```
public final Dimensions dimensions()
```
Overrides:

dimensions in class Quantity

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 Quantity

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class Object

getName
```
public String getName()
```

times

public static Unit times(Unit unit1,
                         Unit unit2)

divide

public static Unit divide(Unit unit1,
                          Unit unit2)

pow

public static Unit pow(Unit unit,
                       int power)

make

public static NamedUnit make(String name,
                             Quantity value)

define

public static Unit define(String name,
                          DQuantity value)

define

public static Unit define(String name,
                          double factor,
                          Unit base)

number
```
public Complex number()
```
Specified by:

number in class Quantity

isExact
```
public boolean isExact()
```
Specified by:

isExact in class Numeric

isZero
```
public final boolean isZero()
```
Specified by:

isZero in class Numeric

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

sqrt
```
public Unit sqrt()
```

lookup

public static NamedUnit lookup(String name)

toString

public String toString(double val)

toString

public String toString(RealNum val)

toString
```
public String toString()
```
Overrides:

toString in class Numeric

unit
```
public Unit unit()
```
Overrides:

unit in class Quantity

Class Unit

Field Summary

Fields inherited from class gnu.math.Numeric

Method Summary

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

Field Detail

Empty

NON_COMBINABLE

meter

duration

gram

cm

mm

in

pt

pica

radian

degree

gradian

date

second

month

minute

hour

Method Detail

dimensions

doubleValue

hashCode

getName

times

divide

pow

make

define

define

number

isExact

isZero

power

sqrt

lookup

toString

toString

toString

unit