diff --git a/main.cpp b/main.cpp
index 733fc0b..ac1147c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -66,6 +66,10 @@ void matrix_main() {
   d[0] = cnumber(1, -1);
   d[1] = 5;
 
+  vector e = vector(2);
+  e[0] = cnumber(1, -1);
+  e[1] = 5;
+
   matrix m = matrix(2, 2);
   m[0] = a;
   m[1] = b;
@@ -92,6 +96,12 @@ void matrix_main() {
   std::cout << n.get_off_diagonal() << std::endl;
   std::cout << "The vector d:" << std::endl;
   std::cout << d << std::endl;
+  std::cout << "Matrix n augmented by the vector e" << std::endl;
+  matrix yahoo = n.augment(e);
+  std::cout << yahoo << std::endl;
+  std::cout << "The vector d as row:" << std::endl;
+  d.make_row();
+  std::cout << d << std::endl;
   std::cout << "The matrix n * the vector d" << std::endl;
   std::cout << n * d << std::endl;
   std::cout << "The vector d * the matrix n" << std::endl;
@@ -154,9 +164,9 @@ void vector_main() {
   std::cout << k << std::endl;
 }
 int main() {
-  fraction_main();
-  cnumber_main();
-  vector_main();
+  //fraction_main();
+  //cnumber_main();
+  //vector_main();
   matrix_main();
   return 0;
 }