Index: lutinmatrix/src/test/org/codelutin/math/matrix/MatrixNDTest.java
diff -u lutinmatrix/src/test/org/codelutin/math/matrix/MatrixNDTest.java:1.9 lutinmatrix/src/test/org/codelutin/math/matrix/MatrixNDTest.java:1.10
--- lutinmatrix/src/test/org/codelutin/math/matrix/MatrixNDTest.java:1.9	Mon Apr  2 10:51:44 2007
+++ lutinmatrix/src/test/org/codelutin/math/matrix/MatrixNDTest.java	Wed Oct 10 15:56:12 2007
@@ -21,9 +21,9 @@
 *
 * Created: 10 mai 2004
 *
-* @version $Revision: 1.9 $
+* @version $Revision: 1.10 $
 *
-* Mise a jour: $Date: 2007/04/02 10:51:44 $
+* Mise a jour: $Date: 2007/10/10 15:56:12 $
 * par : $Author: bpoussin $
 */
 
@@ -535,7 +535,94 @@
 
     }
     
-    public void testToList() throws Exception {
+    public void testReduceDims() throws Exception {
+
+        MatrixND mat = null;
+
+        mat = getFactory().create(new int[]{6, 7, 8});
+        MatrixHelper.fill(mat, 3);
+
+        mat = mat.sumOverDim(1);
+        assertEquals(21, mat.getValue(0, 0, 0), 0);
+        mat = mat.reduceDims(1);
+        assertEquals(2, mat.getNbDim());
+        assertEquals(6, mat.getDim(0));
+        assertEquals(8, mat.getDim(1));
+        assertEquals(21, mat.getValue(0, 0), 0);
+        assertEquals(21, mat.getValue(5, 7), 0);
+
+
+        mat = getFactory().create(new int[]{2, 2, 2});
+        MatrixHelper.fill(mat, 26);
+
+        mat = mat.sumOverDim(1);
+        mat = mat.sumOverDim(0);
+        assertEquals(104, mat.getValue(0, 0, 0), 0);
+        mat = mat.reduceDims(1,0);
+        assertEquals(1, mat.getNbDim());
+        assertEquals(2, mat.getDim(0));
+        assertEquals(104, mat.getValue(0), 0);
+        assertEquals(104, mat.getValue(1), 0);
+
+
+        mat = getFactory().create(new int[]{2, 2, 2});
+        MatrixHelper.fill(mat, 6);
+
+        mat = mat.sumOverDim(1);
+        mat = mat.sumOverDim(2);
+        mat = mat.sumOverDim(0);
+        assertEquals(48, mat.getValue(0, 0, 0), 0);
+        mat = mat.reduceDims(1,2,0);
+        assertEquals(1, mat.getNbDim());
+        assertEquals(1, mat.getDim(0));
+        assertEquals(48, mat.getValue(0), 0);
+
+
+
+        mat = getFactory().create(new int[]{6, 7, 8});
+        MatrixHelper.fill(mat, 3);
+
+        mat = mat.sumOverDim(1);
+        assertEquals(21, mat.getValue(0, 0, 0), 0);
+        mat = mat.reduceDims(0);
+        assertEquals(3, mat.getNbDim());
+        assertEquals(6, mat.getDim(0));
+        assertEquals(1, mat.getDim(1));
+        assertEquals(8, mat.getDim(2));
+        assertEquals(21, mat.getValue(0, 0, 0), 0);
+        assertEquals(21, mat.getValue(5, 0, 7), 0);
+
+
+        mat = getFactory().create(new int[]{2, 2, 2});
+        MatrixHelper.fill(mat, 26);
+
+        mat = mat.sumOverDim(1);
+        mat = mat.sumOverDim(0);
+        assertEquals(104, mat.getValue(0, 0, 0), 0);
+        mat = mat.reduceDims(1);
+        assertEquals(2, mat.getNbDim());
+        assertEquals(1, mat.getDim(0));
+        assertEquals(2, mat.getDim(1));
+        assertEquals(104, mat.getValue(0, 0), 0);
+        assertEquals(104, mat.getValue(0, 1), 0);
+
+
+        mat = getFactory().create(new int[]{2, 2, 2});
+        MatrixHelper.fill(mat, 6);
+
+        mat = mat.sumOverDim(1);
+        mat = mat.sumOverDim(2);
+        mat = mat.sumOverDim(0);
+        assertEquals(48, mat.getValue(0, 0, 0), 0);
+        mat = mat.reduceDims(0, 1, 2);
+        assertEquals(1, mat.getNbDim());
+        assertEquals(1, mat.getDim(0));
+        assertEquals(48, mat.getValue(0), 0);
+
+
+    }
+    
+   public void testToList() throws Exception {
         MatrixND mat1 = getFactory().create(new int[]{3, 2, 1});
         mat1.setValue(0, 0, 0, 1.0E-7);
         mat1.setValue(1, 1, 0, 2);