1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.math.linear;
19
20 import org.apache.commons.math.MathException;
21
22 /**
23 * This class represents exceptions thrown when a matrix expected to
24 * be positive definite is not.
25 *
26 * @since 1.2
27 * @version $Revision: 799857 $ $Date: 2009-08-01 09:07:12 -0400 (Sat, 01 Aug 2009) $
28 */
29
30 public class NotPositiveDefiniteMatrixException extends MathException {
31
32 /** Serializable version identifier */
33 private static final long serialVersionUID = 4122929125438624648L;
34
35 /** Simple constructor.
36 * build an exception with a default message.
37 */
38 public NotPositiveDefiniteMatrixException() {
39 super("not positive definite matrix");
40 }
41
42 }