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JSci is a set of open source Java packages. The aim is to encapsulate scientific methods/principles in the most natural way possible. As such they should greatly aid the development of scientific based software. It offers: abstract math interfaces, linear algebra (support for various matrix and vector types), statistics (including probability distributions), wavelets, newtonian mechanics, chart/graph components (AWT and Swing), MathML DOM implementation, ... Note: some packages, like javax.comm, for the astro and instruments package aren't listed as dependencies (not available).

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package JSci.tests;

import JSci.maths.*;
import JSci.maths.fields.*;

/**
 * Testcase for Number subclasses.
 */
public class NumberTest extends junit.framework.TestCase {
	public static void main(String[] args) {
		junit.textui.TestRunner.run(NumberTest.class);
	}
	public NumberTest(String name) {
		super(name);
	}
	protected void setUp() throws Exception {
		JSci.GlobalSettings.ZERO_TOL=1.0e-9;
		super.setUp();
	}
	public void testOne() {
		// integers are a subset of reals
		assertTrue(RealField.ONE.equals(IntegerRing.ONE));
		assertFalse(IntegerRing.ONE.equals(RealField.ONE));
	}
}