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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 java.util.Random;
import JSci.maths.*;

/**
* Testcase for array methods.
* @author Mark Hale
*/
public class ArrayTest extends junit.framework.TestCase {
        private final Random random = new Random();

        public static void main(String arg[]) {
                junit.textui.TestRunner.run(ArrayTest.class);
        }
        public ArrayTest(String name) {
                super(name);
        }
        protected void setUp() {
                JSci.GlobalSettings.ZERO_TOL=1.0e-6;
        }
        public void testMedian() {
                final int N = random.nextInt(31)+1;
                double array[] = new double[N];
                array[0] = random.nextDouble();
                for(int i=1; i