diff --git a/includes/tab.h b/includes/tab.h
index c0446e14aa4f637b6941c035afde7bc245dd62f7..8693f1bac377e0a7819eeb43717e3e82bc10c0df 100644
--- a/includes/tab.h
+++ b/includes/tab.h
@@ -1,43 +1,44 @@
-#ifndef TAB_H
-#define TAB_H
-
-#include <iostream>
-#include <limits>
-#include <iomanip>
-
-class Materiaux
-{
-    private:
-        double lambda_;
-        double kho_;
-        double c_;
-
-    public:
-        Materiaux(double lambda, double kho, double c);
-
-        double getlambda()
-        {
-            return lambda_;
-        }
-
-        double getkho()
-        {
-            return kho_;
-        }
-
-        double getc()
-        {
-            return c_;
-        }
-
-        double coeff()
-        {
-            return (lambda_/(c_*kho_));
-        }
-
-};
-
-int** settab(Materiaux mat, int m, int n , int u0,double T, double f);
-
-
-#endif
+#ifndef TAB_H
+#define TAB_H
+
+#include <iostream>
+#include <limits>
+#include <iomanip>
+
+class Materiaux
+{
+    private:
+        const char* materiaux_;
+        double lambda_;
+        double kho_;
+        double c_;
+
+    public:
+        Materiaux(const char* materiaux, double lambda, double kho, double c);
+
+        const char* get_mat(){
+            return materiaux_;
+        }
+
+        double getlambda()
+        {
+            return lambda_;
+        }
+
+        double getkho()
+        {
+            return kho_;
+        }
+
+        double getc()
+        {
+            return c_;
+        }
+
+
+};
+
+int** settab(Materiaux mat, int m, int n , int u0,double T, double L, double f);
+
+
+#endif