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Fast double-precision vector and matrix maths library for Java, supporting N-dimensional numeric arrays.

There is a newer version: 0.67.0

package mikera.matrixx.decompose;

import mikera.matrixx.AMatrix;
import mikera.matrixx.decompose.impl.hessenberg.HessenbergSimilarDecomposition;

/**
 * Public API class for Hessenberg decomposition
 */
public class Hessenberg {

	private Hessenberg() {
	}

	/**
	 * 
	 * Finds the decomposition of a matrix in the form of:

	 * 

	 * A = QHQ^T

	 * 

	 * where A is an m by m matrix, Q is an orthogonal matrix, and H is an upper
	 * Hessenberg matrix.
	 * 
	 *
	 * 
	 * A matrix is upper Hessenberg if a^ij = 0 for all i > j+1.
	 * 
	 */
	public static IHessenbergResult decompose(AMatrix A) {
		return HessenbergSimilarDecomposition.decompose(A);
	}

}