01 /*
02 * $Id: CholSample.java,v 1.6 2008/02/02 03:06:27 koga Exp $
03 *
04 * Copyright (C) 2004 Koga Laboratory. All rights reserved.
05 *
06 */
07 package matxbook.chap08;
08
09 import org.mklab.nfc.matrix.DoubleMatrix;
10 import org.mklab.nfc.matrix.Matrix;
11
12
13 /**
14 * @author koga
15 * @version $Revision: 1.6 $, 2004/04/15
16 */
17 public class CholeskyDecompositionSample {
18
19 /**
20 * メインメソッド
21 *
22 * @param args コマンドライン引数
23 */
24 @SuppressWarnings("nls")
25 public static void main(String[] args) {
26 DoubleMatrix a = new DoubleMatrix(new double[][] { {4, 2}, {2, 3}});
27 Matrix r = a.choleskyDecompose();
28 r.print("r");
29 r.transpose().multiply(r).print("r'*r");
30 }
31 }
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