diff --git a/Program.cs b/Program.cs
index b8b6978..f2d4a01 100644
--- a/Program.cs
+++ b/Program.cs
@@ -1,4 +1,6 @@
-namespace matrix_2;
+using System.Reflection.Metadata;
+
+namespace matrix_2;
 
 class Program {
     static void Main(string[] args) {
@@ -20,6 +22,8 @@ class Program {
             Console.WriteLine("4. Media diagonale principale");
             Console.WriteLine("5. Prodotto diagonale principale");
             Console.WriteLine("6. Valore minimo e massimo diagonale principale");
+            Console.WriteLine("7. Trova zeri sulla diagonale principale");
+            Console.WriteLine("8. Cerca sulla diagonale principale");
             Console.WriteLine("0. Esci");
             Console.Write("Scelta: ");
             scelta = Convert.ToInt32(Console.ReadLine());
@@ -85,6 +89,37 @@ class Program {
                     }
                     Pausa();
                     break;
+                case 7:
+                    Console.Clear();
+                    if (matrix != null) {
+                        if (TrovaDiagonale(matrix, 0)) {
+                            Console.WriteLine("Sulla diagonale principale sono presenti degli zeri");
+                        }
+                        else {
+                            Console.WriteLine("Sulla diagonale principale non sono presenti degli zeri");
+                        }
+                    }
+                    else {
+                        Console.WriteLine("È necessario creare la matrice prima di cercare gli zeri sulla diagonale principale.");
+                    }
+                    Pausa();
+                    break;
+                case 8:
+                    Console.Clear();
+                    if (matrix != null) {
+                        Console.Write("Inserire un numero da cercare: ");
+                        if (TrovaDiagonale(matrix, Convert.ToInt32(Console.ReadLine()))) {
+                            Console.WriteLine("Elemento trovato");
+                        }
+                        else {
+                            Console.WriteLine("Elemento non trovato");
+                        }
+                    }
+                    else {
+                        Console.WriteLine("È necessario creare la matrice prima di cercare un elemento sulla diagonale principale.");
+                    }
+                    Pausa();
+                    break;
                 default:
                     Console.WriteLine("Opzione non valida.");
                     Pausa();
@@ -120,7 +155,7 @@ class Program {
         Random rnd = new Random();
         for (int r = 0; r < p_matrice.GetLength(0); r++) {
             for (int c = 0; c < p_matrice.GetLength(1); c++) {
-                p_matrice[r, c] = rnd.Next(6); //TODO: rimettere il valore a 101
+                p_matrice[r, c] = rnd.Next(101);
             }
         }
     }
@@ -170,4 +205,14 @@ class Program {
 
         return ritorno;
     }
+
+    static bool TrovaDiagonale(int[,] p_matrice, int p_DaTrovare) {
+        bool ritorno = false;
+        for (int r = 0; r < p_matrice.GetLength(0) && !ritorno; r++) {
+            if (p_matrice[r, r] == p_DaTrovare) {
+                ritorno = true;
+            }
+        }
+        return ritorno;
+    }
 }
diff --git a/bin/Debug/net9.0/matrix_2.dll b/bin/Debug/net9.0/matrix_2.dll
index 5b6180d..fec6a6e 100644
Binary files a/bin/Debug/net9.0/matrix_2.dll and b/bin/Debug/net9.0/matrix_2.dll differ
diff --git a/bin/Debug/net9.0/matrix_2.pdb b/bin/Debug/net9.0/matrix_2.pdb
index c3491e8..f3b4193 100644
Binary files a/bin/Debug/net9.0/matrix_2.pdb and b/bin/Debug/net9.0/matrix_2.pdb differ
diff --git a/obj/Debug/net9.0/matrix_2.AssemblyInfo.cs b/obj/Debug/net9.0/matrix_2.AssemblyInfo.cs
index 008dc35..eb045e0 100644
--- a/obj/Debug/net9.0/matrix_2.AssemblyInfo.cs
+++ b/obj/Debug/net9.0/matrix_2.AssemblyInfo.cs
@@ -13,10 +13,10 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("matrix_2")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+282e5ed6576673e17566281d70cd78d712d58a3a")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+9441f2232224090ad4976d49bcfdbeb7d01779f6")]
 [assembly: System.Reflection.AssemblyProductAttribute("matrix_2")]
 [assembly: System.Reflection.AssemblyTitleAttribute("matrix_2")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
 
-// Generated by the MSBuild WriteCodeFragment class.
+// Generato dalla classe WriteCodeFragment di MSBuild.
 
diff --git a/obj/Debug/net9.0/matrix_2.AssemblyInfoInputs.cache b/obj/Debug/net9.0/matrix_2.AssemblyInfoInputs.cache
index 65ec05d..d5fc491 100644
--- a/obj/Debug/net9.0/matrix_2.AssemblyInfoInputs.cache
+++ b/obj/Debug/net9.0/matrix_2.AssemblyInfoInputs.cache
@@ -1 +1 @@
-5c574530e7a1f84a8ba8807f4f033310b4dab2123c9302f06e61373058a1456f
+0e56d238097473adb0a30716e289d969291c614c61b91e302df23fb47e627318
diff --git a/obj/Debug/net9.0/matrix_2.dll b/obj/Debug/net9.0/matrix_2.dll
index 5b6180d..fec6a6e 100644
Binary files a/obj/Debug/net9.0/matrix_2.dll and b/obj/Debug/net9.0/matrix_2.dll differ
diff --git a/obj/Debug/net9.0/matrix_2.pdb b/obj/Debug/net9.0/matrix_2.pdb
index c3491e8..f3b4193 100644
Binary files a/obj/Debug/net9.0/matrix_2.pdb and b/obj/Debug/net9.0/matrix_2.pdb differ
diff --git a/obj/Debug/net9.0/ref/matrix_2.dll b/obj/Debug/net9.0/ref/matrix_2.dll
index e4d45df..8600c25 100644
Binary files a/obj/Debug/net9.0/ref/matrix_2.dll and b/obj/Debug/net9.0/ref/matrix_2.dll differ
diff --git a/obj/Debug/net9.0/refint/matrix_2.dll b/obj/Debug/net9.0/refint/matrix_2.dll
index e4d45df..8600c25 100644
Binary files a/obj/Debug/net9.0/refint/matrix_2.dll and b/obj/Debug/net9.0/refint/matrix_2.dll differ