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Java Source Code / Java Documentation » Science » jscience 4.3.1 » org.jscience.physics.amount

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

org.jscience.physics.amount .Constants

Constants

final public class Constants (Code)

This class provides most accurate physical constants measurement; the more accurate the constants, the higher the precision of the calculations making use of these constants.

Constant names use the full range of Unicode characters and are mixed uppercase/lowercase to resemble symbolic names as much as possible

Reference: CODATA Internationally recommended values of the Fundamental Physical Constants (2002)

author:
Jean-Marie Dautelle
version:
3.1, April 7, 2006

Field Summary
final public static Amount	Eh
final public static Amount	F
final public static Amount	G Holds the Newtonian constant of gravitation.
final public static Amount<ElectricConductance>	G0
final public static Amount	N Holds the Avogadro constant.
final public static Amount	R
final public static Amount	Rinf Holds the Rydberg constant (α²·me·c/2h).
final public static Amount<ElectricResistance>	Z0 Holds the characteristic impedance of vacuum (µ0·c).
final public static Amount<Length>	a0
final public static Amount<Mass>	amu
final public static Amount<Velocity>	c Holds the speed of light in vacuum (exact).
final public static Amount	c_square Holds Constants.c ².
final public static Amount<ElectricCharge>	e Holds the elementary charge (positron charge).
final public static Amount<Dimensionless>	four_π Holds 4· Constants.π .
final public static Amount<Acceleration>	g Holds the standard acceleration due to gravity (approximately equal to the acceleration due to gravity on the Earth's surface).
final public static Amount<Dimensionless>	half_π Holds Constants.π /2.
final public static Amount	k Holds the Boltzmann constant.
final public static Amount<Length>	lP
final public static Amount<Mass>	mP
final public static Amount<Mass>	md Holds the deuteron rest mass.
final public static Amount<Mass>	me Holds the electron rest mass.
final public static Amount<Mass>	mn Holds the neutron rest mass.
final public static Amount<Mass>	mp Holds the proton rest mass.
final public static Amount<Mass>	m� Holds the muon rest mass.
final public static Amount<Duration>	tP
final public static Amount<Dimensionless>	two_π Holds 2· Constants.π .
final public static Amount	µ0 Holds the permeability of vacuum or magnetic constant.
final public static Amount	µB
final public static Amount	µN
final public static Amount<Dimensionless>	�
final public static Amount<MagneticFlux>	�
final public static Amount	ε0
final public static Amount	σ
final public static Amount<Dimensionless>	π Holds the ratio of the circumference of a circle to its diameter.
final public static Amount<Dimensionless>	π_square Holds Constants.π ².
final public static Amount	� Holds the Planck constant.
final public static Amount	� Holds the Planck constant over 2π.

Field Detail

Eh
final public static Amount Eh(Code)
	Holds the Hartree energy (2Rinf·h·c)

F
final public static Amount F(Code)
	Holds the Faraday constant (N·e) See Also: * Wikipedia: Faraday constant

G
final public static Amount G(Code)
	Holds the Newtonian constant of gravitation. See Also: * Wikipedia: Gravitational Constant

G0
final public static Amount<ElectricConductance> G0(Code)
	Holds the conductance quantum (2e²/h)

N
final public static Amount N(Code)
	Holds the Avogadro constant. See Also: * Wikipedia: Avogadro's number

R
final public static Amount R(Code)
	Holds the molar gas constant (N·k) See Also: * Wikipedia: Gas constant

Rinf
final public static Amount Rinf(Code)
	Holds the Rydberg constant (α²·me·c/2h). See Also: * Wikipedia: Rydberg constant

Z0
final public static Amount<ElectricResistance> Z0(Code)
	Holds the characteristic impedance of vacuum (µ0·c).

a0
final public static Amount<Length> a0(Code)
	Holds the Bohr radius (α/(4π·Rinf))

amu
final public static Amount<Mass> amu(Code)
	Holds the unified atomic mass unit (0.001 kg/mol)/N

c
final public static Amount<Velocity> c(Code)
	Holds the speed of light in vacuum (exact).

c_square
final public static Amount c_square(Code)
	Holds Constants.c ².

e
final public static Amount<ElectricCharge> e(Code)
	Holds the elementary charge (positron charge). See Also: * Wikipedia: Elementary Charge

four_π
final public static Amount<Dimensionless> four_π(Code)
	Holds 4· Constants.π .

g
final public static Amount<Acceleration> g(Code)
	Holds the standard acceleration due to gravity (approximately equal to the acceleration due to gravity on the Earth's surface). See Also: * Wikipedia: Acceleration due to gravity

half_π
final public static Amount<Dimensionless> half_π(Code)
	Holds Constants.π /2.

k
final public static Amount k(Code)
	Holds the Boltzmann constant. See Also: * Wikipedia: Boltzmann constant

lP
final public static Amount<Length> lP(Code)
	Holds the Planck length (�?/(mP·c))

mP
final public static Amount<Mass> mP(Code)
	Holds the Planck mass (�?·c/G)^1/2

md
final public static Amount<Mass> md(Code)
	Holds the deuteron rest mass.

me
final public static Amount<Mass> me(Code)
	Holds the electron rest mass.

mn
final public static Amount<Mass> mn(Code)
	Holds the neutron rest mass.

mp
final public static Amount<Mass> mp(Code)
	Holds the proton rest mass.

m�
final public static Amount<Mass> m�(Code)
	Holds the muon rest mass.

tP
final public static Amount<Duration> tP(Code)
	Holds the Planck time (lP/c)

two_π
final public static Amount<Dimensionless> two_π(Code)
	Holds 2· Constants.π .

µ0
final public static Amount µ0(Code)
	Holds the permeability of vacuum or magnetic constant. See Also: * Wikipedia: Permeability (electromagnetism)

µB
final public static Amount µB(Code)
	Holds the Bohr magneton (�?·e/2me)

µN
final public static Amount µN(Code)
	Holds the nuclear magneton (�?·e/2mp)

�
final public static Amount<Dimensionless> �(Code)
	Holds the fine structure constant (e²/(2·ε0·c·h)) See Also: * Wikipedia: Fine Structure Constant

�
final public static Amount<MagneticFlux> �(Code)
	Holds the magnetic flux quantum (h/2e)

ε0
final public static Amount ε0(Code)
	Holds the permittivity of vacuum or electric constant (1/(µ0·c²)) See Also: * Wikipedia: Permittivity

σ
final public static Amount σ(Code)
	Holds the Stefan-Boltzmann constant ((π²/60)·k⁴/(�?³·c²))

π
final public static Amount<Dimensionless> π(Code)
	Holds the ratio of the circumference of a circle to its diameter.

π_square
final public static Amount<Dimensionless> π_square(Code)
	Holds Constants.π ².

�
final public static Amount �(Code)
	Holds the Planck constant. See Also: * Wikipedia: Plank's constant

�
final public static Amount �(Code)
	Holds the Planck constant over 2π.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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