diff --git a/LibMatrix/matrix.c b/LibMatrix/matrix.c
index 873117f..ec902a9 100644
--- a/LibMatrix/matrix.c
+++ b/LibMatrix/matrix.c
@@ -35,10 +35,7 @@ Matrix applyRules (Matrix matrix,int Rules, int N){
 		tempMatrix2 = matrixFromRules(tempMatrix1,i, RulesMatrix);
 		freeMatrix(tempMatrix1);
 
-		tempMatrix1.colCount = tempMatrix2.colCount;
-		tempMatrix1.rowCount = tempMatrix2.rowCount;
-		tempMatrix1.cols = tempMatrix2.cols;
-		tempMatrix1.rows = tempMatrix2.rows;
+		tempMatrix1 = tempMatrix2;
 	}
 
 	return tempMatrix1;
@@ -621,10 +618,81 @@ bool * GetFromRules(Matrix m, int ColPos, int RowPos, int n, int rules[]){
 
 }
 
+bool isMatrixEmpty(Matrix matrix){
+	if (matrix.colCount < 1 || matrix.rowCount < 1){
+		return true;
+	}
+	if (matrix.cols->size == 0 || matrix.rows->size == 0){
+		return true;
+	}
+	return false;
+}
+
+bool isMatrixSquare(Matrix matrix){
+	if (matrix.colCount == matrix.rowCount){
+		return true;
+	}
+	return false;
+}
+
+bool isColumnEmpty(Matrix matrix,int nb){
+	ListElement * Col = NULL;
+
+	if (matrix.colCount < 1 || matrix.rowCount < 1){
+		return true;
+	}
+	if (matrix.cols->size == 0 || matrix.rows->size == 0){
+		return true;
+	}
+	
+	Col = GetElementPos(matrix.cols,nb);
+	if (Col == NULL || Col->data == NULL){
+		return true;
+	}
+
+	return false;
+}
+
+bool isRowEmpty(Matrix matrix,int nb){
+	ListElement * Row = NULL;
+
+	if (matrix.colCount < 1 || matrix.rowCount < 1){
+		return true;
+	}
+	if (matrix.cols->size == 0 || matrix.rows->size == 0){
+		return true;
+	}
+	Row = GetElementPos(matrix.rows,nb);
+	if (Row == NULL || Row->data == NULL){
+		return true;
+	}
+
+	return false;
+}
+
+bool equalsMatrix(Matrix m1, Matrix m2){
+	int i = 0;
+	int j = 0;
+
+	if (m1.colCount == m2.colCount && m1.rowCount == m2.rowCount){
+		for (i=0;i<m2.colCount;i++){
+			for (j=0;j<m1.rowCount;j++){
+				if (GetCellValue(m1,i,j)!=GetCellValue(m2,i,j)){
+					return false;
+				}
+				
+			}
+		}
+	}else{
+	
+		return false;
+	
+	}
+
+	return true;
+}
+
 /* todos :
-*mulMatrix
-*
-*chasser les bugs
+*faire les fontions débiles qui restent
 *ecrire doc
-*faire un print + opti pour que sli l'adapte avec sdl
 */
diff --git a/LibMatrix/matrix.h b/LibMatrix/matrix.h
index 8fe2002..74df19d 100644
--- a/LibMatrix/matrix.h
+++ b/LibMatrix/matrix.h
@@ -340,8 +340,26 @@ bool bottom_rightRule(Matrix m, int ColPos, int RowPos);
 */
 bool * GetFromRules(Matrix m, int ColPos, int RowPos, int n, int rules[]);
 
+/*---applyRules---
+*A function tha allows you to apply some rules n times on the matrix and returns it
+*
+*@matrix : A matrix on whitch you would apply the rules
+*
+*@Rules : Integer describing the rules
+*
+*@N : number of time the rules will be applied
+*
+*/
+Matrix applyRules(Matrix matrix,int Rules, int N);
+
 Matrix sumMatrix(Matrix matrix1,Matrix matrix2);
 Matrix mulMatrix(Matrix matrix1,Matrix matrix2);
+bool isMatrixEmpty(Matrix matrix);
+bool isMatrixSquare(Matrix matrix);
+bool isColumnEmpty(Matrix matrix,int nb);
+bool isRowEmpty(Matrix matrix,int nb);
+bool equalsMatrix(Matrix m1, Matrix m2);
+
 
 #endif