Package org.jscience.physics.model

Provides models for physical quantities.

See: Description

Class Summary

Class	Description
HighEnergyModel	This class represents the high-energy model.
NaturalModel	This class represents the natural model.
PhysicalModel	This abstract class represents a physical model.
QuantumModel	This class represents the quantum model.
RelativisticModel	This class represents the relativistic model.
StandardModel	This class represents the standard model.

Package org.jscience.physics.model Description

Provides models for physical quantities.

The difference between models lies in the assumptions each makes and, in consequence,the operations each permits. For example, the summation of a length and a duration is not allowed by the standard model, but is quite valid in a relativistic context.

Models are context-local, allowing multiple models to be used concurrently. For example:

        LocalContext.enter();
        try {
            RelativisticModel.select(); // Affects the current thread only.
            ...
        } finally {
           LocalContext.exit();
        }

The names and characteristics of the models are presented in the following table:

Model	Class	Defining Characteristics	Default Output Units
Standard	"StandardModel"	per Système Internationale	Length: m; Mass: kg; Duration: s; ElectricCurrent: A; Temperature: K; AmountOfSubstance: mol; LuminousIntensity: cd
Relativistic	"RelativisticModel"	1 = c	Length, Duration: s; Mass: eV; ElectricCurrent: A; Temperature: K; AmountOfSubstance: mol; LuminousIntensity: cd
High-Energy	"HighEnergyModel"	1 = c = k = ePlus	Length, Duration: ns; Mass, Temperature: GeV; ElectricCurrent: 1/ns; AmountOfSubstance: mol; LuminousIntensity: cd
Quantum	"QuantumModel"	1 = c = k = µ0 = hBar	Length, Duration: 1/GeV; Mass, Temperature, ElectricCurrent: GeV; AmountOfSubstance: mol; LuminousIntensity: cd
Natural	"NaturalModel"	1 = c = k = µ0 = hBar = G	Length, Mass, Duration, ElectricCurrent, Temperature: 1; AmountOfSubstance: mol; LuminousIntensity: cd