35 lines
1.2 KiB
Java
35 lines
1.2 KiB
Java
/*
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* JScience - Java(TM) Tools and Libraries for the Advancement of Sciences.
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* Copyright (C) 2006 - JScience (http://jscience.org/)
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* All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software is
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* freely granted, provided that this notice is preserved.
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*/
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package javax.measure.quantity;
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import javax.measure.unit.ProductUnit;
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import javax.measure.unit.SI;
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import javax.measure.unit.Unit;
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/**
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* This interface represents the moment of a force. The system unit for this
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* quantity is "N·m" (Newton-Meter).
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*
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* <p> Note: The Newton-metre ("N·m") is also a way of exressing a Joule (unit
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* of energy). However, torque is not energy. So, to avoid confusion, we
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* will use the units "N·m" for torque and not "J". This distinction occurs
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* due to the scalar nature of energy and the vector nature of torque.</p>
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*
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* @author <a href="mailto:jean-marie@dautelle.com">Jean-Marie Dautelle</a>
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* @version 1.0, January 14, 2006
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*/
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public interface Torque extends Quantity {
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/**
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* Holds the SI unit (Système International d'Unités) for this quantity.
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*/
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public final static Unit<Torque> UNIT =
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new ProductUnit<Torque>(SI.NEWTON.times(SI.METRE));
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}
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