Index: lutinmatrix/src/java/org/codelutin/math/matrix/AbstractMatrixND.java
diff -u lutinmatrix/src/java/org/codelutin/math/matrix/AbstractMatrixND.java:1.10 lutinmatrix/src/java/org/codelutin/math/matrix/AbstractMatrixND.java:1.11
--- lutinmatrix/src/java/org/codelutin/math/matrix/AbstractMatrixND.java:1.10	Wed Mar 22 19:38:47 2006
+++ lutinmatrix/src/java/org/codelutin/math/matrix/AbstractMatrixND.java	Mon May 22 12:39:07 2006
@@ -23,9 +23,9 @@
  * Created: 29 oct. 2004
  *
  * @author Benjamin Poussin <poussin@codelutin.com>
- * @version $Revision: 1.10 $
+ * @version $Revision: 1.11 $
  *
- * Mise a jour: $Date: 2006/03/22 19:38:47 $
+ * Mise a jour: $Date: 2006/05/22 12:39:07 $
  * par : $Author: bpoussin $
  */
 
@@ -80,7 +80,11 @@
         this(factory);
         int [] dim = new int[semantics.length];
         for(int i=0; i<dim.length; i++){
-            dim[i] = semantics[i].size();
+            if (semantics[i] == null) {
+                dim[i] = 0;
+            } else {
+                dim[i] = semantics[i].size();
+            }
         }
         init(dim);
         for(int i=0; i<getNbDim(); i++){

Index: lutinmatrix/src/java/org/codelutin/math/matrix/BasicMatrix.java
diff -u lutinmatrix/src/java/org/codelutin/math/matrix/BasicMatrix.java:1.4 lutinmatrix/src/java/org/codelutin/math/matrix/BasicMatrix.java:1.5
--- lutinmatrix/src/java/org/codelutin/math/matrix/BasicMatrix.java:1.4	Thu Oct 20 20:58:04 2005
+++ lutinmatrix/src/java/org/codelutin/math/matrix/BasicMatrix.java	Mon May 22 12:39:07 2006
@@ -23,9 +23,9 @@
  * Created: 27 oct. 2004
  *
  * @author Benjamin Poussin <poussin@codelutin.com>
- * @version $Revision: 1.4 $
+ * @version $Revision: 1.5 $
  *
- * Mise a jour: $Date: 2005/10/20 20:58:04 $
+ * Mise a jour: $Date: 2006/05/22 12:39:07 $
  * par : $Author: bpoussin $
  */
 
@@ -220,9 +220,10 @@
     * à un élement de la matrice
     */
     protected void checkPos(int [] pos){
-        boolean result = getNbDim() == pos.length;
-        for(int i=0; result && i<getNbDim(); i++){
-            result = (0 <= pos[i]) && (pos[i] < getDim(i));
+        int [] dim = getDim();
+        boolean result = dim.length == pos.length;
+        for(int i=0; result && i<dim.length; i++){
+            result = (0 <= pos[i]) && (pos[i] < dim[i]);
         }
         if(! result){
             throw new NoSuchElementException("L'élément demandé n'existe pas dans la matrice.");

Index: lutinmatrix/src/java/org/codelutin/math/matrix/SubMatrix.java
diff -u lutinmatrix/src/java/org/codelutin/math/matrix/SubMatrix.java:1.6 lutinmatrix/src/java/org/codelutin/math/matrix/SubMatrix.java:1.7
--- lutinmatrix/src/java/org/codelutin/math/matrix/SubMatrix.java:1.6	Mon Jan 23 13:50:05 2006
+++ lutinmatrix/src/java/org/codelutin/math/matrix/SubMatrix.java	Mon May 22 12:39:07 2006
@@ -23,9 +23,9 @@
  * Created: 29 oct. 2004
  *
  * @author Benjamin Poussin <poussin@codelutin.com>
- * @version $Revision: 1.6 $
+ * @version $Revision: 1.7 $
  *
- * Mise a jour: $Date: 2006/01/23 13:50:05 $
+ * Mise a jour: $Date: 2006/05/22 12:39:07 $
  * par : $Author: bpoussin $
  */
 
@@ -111,10 +111,11 @@
         public boolean next(){
             boolean result = hasNext();
             int ret = 1;
+            int [] dim = getDim();
             for(int i=cpt.length-1; i>=0; i--){
                 cpt[i] = cpt[i] + ret;
-                ret = cpt[i] / subMatrix.getDim(i);
-                cpt[i] = cpt[i] % subMatrix.getDim(i);
+                ret = cpt[i] / dim[i];
+                cpt[i] = cpt[i] % dim[i];
             }
             return result;
         }