| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.commons.math4.legacy.linear; |
| |
| import org.apache.commons.math4.legacy.exception.MathIllegalArgumentException; |
| import org.apache.commons.math4.legacy.exception.util.LocalizedFormats; |
| |
| /** |
| * Exception to be thrown when a symmetric, definite positive |
| * {@link RealLinearOperator} is expected. |
| * Since the coefficients of the matrix are not accessible, the most |
| * general definition is used to check that {@code A} is not positive |
| * definite, i.e. there exists {@code x} such that {@code x' A x <= 0}. |
| * In the terminology of this exception, {@code A} is the "offending" |
| * linear operator and {@code x} the "offending" vector. |
| * |
| * @since 3.0 |
| */ |
| public class NonPositiveDefiniteOperatorException |
| extends MathIllegalArgumentException { |
| /** Serializable version Id. */ |
| private static final long serialVersionUID = 917034489420549847L; |
| |
| /** Creates a new instance of this class. */ |
| public NonPositiveDefiniteOperatorException() { |
| super(LocalizedFormats.NON_POSITIVE_DEFINITE_OPERATOR); |
| } |
| } |