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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.util;
import JSci.maths.Complex;
import JSci.maths.vectors.*;
/**
* This is a useful collection of vector related methods.
* @author Mark Hale
*/
public final class VectorToolkit {
private VectorToolkit() {}
/**
* Creates a random generated vector.
*/
public static AbstractDoubleVector randomVector(int size) {
return new DoubleVector(size).mapComponents(RandomMap.MAP);
}
/**
* Creates a random generated vector.
*/
public static AbstractComplexVector randomComplexVector(int size) {
return new ComplexVector(size).mapComponents(RandomMap.MAP);
}
/**
* Converts a vector to an array.
*/
public static double[] toArray(AbstractDoubleVector v) {
double array[]=new double[v.dimension()];
array[0]=v.getComponent(0);
for(int i=1;i