--- trunk/src/math/RectMatrix.hpp	2004/10/17 01:19:11	93
+++ trunk/src/math/RectMatrix.hpp	2004/10/19 23:01:03	113
@@ -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
@@ -455,9 +479,11 @@ namespace oopse {
     template<typename Real,  unsigned int Row, unsigned int Col>
     std::ostream &operator<< ( std::ostream& o, const RectMatrix<Real, Row, Col>& m) {
         for (unsigned int i = 0; i < Row ; i++) {
-            o << "(" 
+            o << "(";
             for (unsigned int j = 0; j < Col ; j++) {
-                o << m(i, j) << "\t"
+                o << m(i, j);
+                if (j != Col -1)
+                    o << "\t";
             }
             o << ")" << std::endl;
         }