--- trunk/OOPSE-4/src/math/RectMatrix.hpp	2004/10/17 01:19:11	1586
+++ trunk/OOPSE-4/src/math/RectMatrix.hpp	2004/10/18 23:13:23	1594
@@ -151,6 +151,30 @@ namespace oopse {
             for (unsigned int j = 0; j < Col; j++)
                 data_[j][col] = v[j];
          }         
+
+        /**
+         * swap two rows of this matrix
+         * @param i the first row
+         * @param j the second row
+         */
+        void swapRow(unsigned int i, unsigned int j){
+                assert(i < Row && j < Row);
+
+                for (unsigned int k = 0; k < Col; k++)
+                    std::swap(data_[i][k], data_[j][k]);
+        }
+
+       /**
+         * swap two colums of this matrix
+         * @param i the first colum
+         * @param j the second colum
+         */
+        void swapColum(unsigned int i, unsigned int j){
+                assert(i < Col && j < Col);
+                
+                for (unsigned int k = 0; k < Row; k++)
+                    std::swap(data_[k][i], data_[k][j]);
+        }
 
         /**
          * Tests if this matrix is identical to matrix m