org.jscience.physics.quantities
Class Dimensionless

java.lang.Object
  javolution.realtime.RealtimeObject
      org.jscience.mathematics.numbers.Number<Quantity>
          org.jscience.physics.quantities.Quantity
              org.jscience.physics.quantities.Dimensionless

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Quantity>, Realtime, Operable<Quantity>, Numeric<Quantity>

Direct Known Subclasses:

Angle, DataAmount, SolidAngle

public class Dimensionless
extends Quantity

This class represents a dimensionless quantity. It contains methods for performing basic numeric operations such as the elementary exponential, logarithm and trigonometric functions.

Version:

1.0, October 24, 2004

Author:

Jean-Marie Dautelle

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.jscience.physics.quantities.Quantity

Quantity.Factory<Q extends Quantity>

Nested classes/interfaces inherited from interface javolution.realtime.Realtime

Realtime.ObjectSpace

Field Summary

static Dimensionless	e Holds the natural logarithmic base.
static Dimensionless	ONE Represents a Dimensionless amounting to 1.
static Dimensionless	ZERO Represents a Dimensionless amounting to nothing.

Constructor Summary

protected

Dimensionless() Default constructor (allows for derivation).

Method Summary

Angle	acos() Returns an Angle such as its cosine is this Dimensionless.
Angle	asin() Returns an Angle such as its sine is this Dimensionless.
Angle	atan() Returns an Angle such as its tangent is this Dimensionless.
Dimensionless	exp() Returns the exponential number e raised to the power of this Dimensionless.
Dimensionless	log() Returns the natural logarithm (base e) of this Dimensionless.
Dimensionless	pow(Dimensionless exp) Returns this Dimensionless raised to the power of the specified Dimensionless exponent.
static void	showAs(Unit unit) Shows Dimensionless instances in the specified unit.
static Dimensionless	valueOf(double doubleValue) Returns the dimensionless corresponding to the specified doubleValue

Methods inherited from class org.jscience.physics.quantities.Quantity

approxEquals, compareTo, divide, doubleValue, equals, getAbsoluteError, getAmount, getMaximum, getMinimum, getRelativeError, getUnit, hashCode, isLargerThan, longValue, minus, norm, opposite, plus, rangeOf, reciprocal, root, sqrt, times, times, to, toText, valueOf, valueOf, valueOf

Methods inherited from class org.jscience.mathematics.numbers.Number

abs, byteValue, divide, floatValue, intValue, inverse, isGreaterThan, isLessThan, pow, shortValue

Methods inherited from class javolution.realtime.RealtimeObject

export, move, moveHeap, preserve, recycle, toString, unpreserve

Methods inherited from class java.lang.Object

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

Methods inherited from interface javolution.realtime.Realtime

move

Field Detail

ZERO

public static final Dimensionless ZERO

Represents a Dimensionless amounting to nothing.

ONE

public static final Dimensionless ONE

Represents a Dimensionless amounting to 1.

e

public static final Dimensionless e

Holds the natural logarithmic base.

Constructor Detail

Dimensionless

protected Dimensionless()

Default constructor (allows for derivation).

Method Detail

valueOf

public static Dimensionless valueOf(double doubleValue)

Returns the dimensionless corresponding to the specified doubleValue

Parameters:

doubleValue - the double value.

showAs

public static void showAs(Unit unit)

Shows Dimensionless instances in the specified unit.

Parameters:

unit - the display unit for Dimensionless instances.

exp

public Dimensionless exp()

Returns the exponential number e raised to the power of this Dimensionless.

Returns:

exp(this)

log

public Dimensionless log()

Returns the natural logarithm (base e) of this Dimensionless.

Returns:

log(this)

pow

public Dimensionless pow(Dimensionless exp)

Returns this Dimensionless raised to the power of the specified Dimensionless exponent.

Parameters:

exp - the exponent.

Returns:

this**exp

asin

public Angle asin()

Returns an Angle such as its sine is this Dimensionless.

Returns:

the arc sine of this angle.

acos

public Angle acos()

Returns an Angle such as its cosine is this Dimensionless.

Returns:

the arc cosine of this angle.

atan

public Angle atan()

Returns an Angle such as its tangent is this Dimensionless.

Returns:

the arc tangent of this angle