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gnu.math
Class Quantity

java.lang.Object
  |
  +--java.lang.Number
        |
        +--gnu.math.Numeric
              |
              +--gnu.math.Quantity

Direct Known Subclasses:

Complex, CQuantity, DQuantity, Unit

public abstract class Quantity

extends Numeric

A quantity with a unit. This generalizes the DSSSL quantity type (to more than lengths).

See Also:

Serialized Form

Fields inherited from class gnu.math.Numeric

CEILING, FLOOR, ROUND, TRUNCATE

Constructor Summary

Quantity()

Method Summary

Numeric	abs()
Numeric	add(java.lang.Object y, int k)
static Quantity	add(Quantity x, Quantity y, int k)
Numeric	addReversed(Numeric x, int k)
int	compare(java.lang.Object obj)
static int	compare(Quantity x, Quantity y)
int	compareReversed(Numeric x)
Dimensions	dimensions()
Numeric	div(java.lang.Object y)
static Quantity	div(Quantity x, Quantity y)
Numeric	divReversed(Numeric x)
double	doubleImagValue() The value of the imaginary component, as a double.
double	doubleValue() The value of the real component, as a double.
RealNum	im() The value of the imaginary component, as a RealNum.
double	imValue() The value of the real component, as a double.
static Quantity	make(Complex x, Unit u)
static Quantity	make(double re, double im, Unit unit)
static Quantity	make(RealNum re, RealNum im, Unit unit)
Numeric	mul(java.lang.Object y)
static Quantity	mul(Quantity x, Quantity y)
Numeric	mulReversed(Numeric x)
Numeric	neg()
abstract Complex	number()
RealNum	re() The value of the real component, as a RealNum.
double	reValue() The value of the imaginary component, as a double.
java.lang.String	toString(int radix)
Unit	unit()

Methods inherited from class gnu.math.Numeric

add, div_inv, equals, floatValue, geq, grt, intValue, isExact, isZero, longValue, mul_ident, power, sub, toString

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Constructor Detail

Quantity

public Quantity()

Method Detail

unit

public Unit unit()

dimensions

public Dimensions dimensions()

number

public abstract Complex number()

re

public RealNum re()

The value of the real component, as a RealNum. The unit() is not factored in, so you actually need to multiply by unit() to get the true real component.

im

public RealNum im()

The value of the imaginary component, as a RealNum. The unit() is not factored in, so you actually need to multiply by unit() to get the true imaginary component.

reValue

public final double reValue()

The value of the imaginary component, as a double. This is relative to the unit().dims - i.e. unit().doubleValue() is factored in. A final alias for the virtual doubleValue.

imValue

public final double imValue()

The value of the real component, as a double. This is relative to the unit().dims - i.e. unit().doubleValue() is factored in. A final alias for the virtual doubleImagValue.

doubleValue

public double doubleValue()

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 java.lang.Number

doubleImagValue

public double doubleImagValue()

The value of the imaginary component, as a double. This is relative to the unit().dims - i.e. unit()/doubleValue() is factored in.

make

public static Quantity make(Complex x,
                            Unit u)

make

public static Quantity make(RealNum re,
                            RealNum im,
                            Unit unit)

make

public static Quantity make(double re,
                            double im,
                            Unit unit)

neg

public Numeric neg()

Overrides:

neg in class Numeric

abs

public Numeric abs()

Overrides:

abs in class Numeric

compare

public static int compare(Quantity x,
                          Quantity y)

compare

public int compare(java.lang.Object obj)

Overrides:

compare in class Numeric

compareReversed

public int compareReversed(Numeric x)

Overrides:

compareReversed in class Numeric

add

public static Quantity add(Quantity x,
                           Quantity y,
                           int k)

add

public Numeric add(java.lang.Object y,
                   int k)

Overrides:

add in class Numeric

addReversed

public Numeric addReversed(Numeric x,
                           int k)

Overrides:

addReversed in class Numeric

mul

public static Quantity mul(Quantity x,
                           Quantity y)

mul

public Numeric mul(java.lang.Object y)

Overrides:

mul in class Numeric

mulReversed

public Numeric mulReversed(Numeric x)

Overrides:

mulReversed in class Numeric

div

public static Quantity div(Quantity x,
                           Quantity y)

div

public Numeric div(java.lang.Object y)

Overrides:

div in class Numeric

divReversed

public Numeric divReversed(Numeric x)

Overrides:

divReversed in class Numeric

toString

public java.lang.String toString(int radix)

Overrides:

toString in class Numeric