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 21 /** 22 * Interface defining very basic matrix operations. 23 * @version $Revision: 772119 $ $Date: 2009-05-06 11:43:28 +0200 (mer. 06 mai 2009) $ 24 * @since 2.0 25 */ 26 public interface AnyMatrix { 27 28 /** 29 * Is this a square matrix? 30 * @return true if the matrix is square (rowDimension = columnDimension) 31 */ 32 boolean isSquare(); 33 34 /** 35 * Returns the number of rows in the matrix. 36 * 37 * @return rowDimension 38 */ 39 int getRowDimension(); 40 41 /** 42 * Returns the number of columns in the matrix. 43 * 44 * @return columnDimension 45 */ 46 int getColumnDimension(); 47 48 } 49
