diff --git a/rustbyexample/primitives/primitives_tuples.rs b/rustbyexample/primitives/primitives_tuples.rs
index 105835d..6201461 100644
--- a/rustbyexample/primitives/primitives_tuples.rs
+++ b/rustbyexample/primitives/primitives_tuples.rs
@@ -14,6 +14,10 @@ impl fmt::Display for Matrix {
     }
 }
 
+fn transpose(m: Matrix) -> Matrix {
+    Matrix(m.0, m.2, m.1, m.3)
+}
+
 fn main() {
     let long_tuple = (
         1u8, 2u16, 3u32, 4u64, -1i8, -2i16, -3i32, -4i64, 0.1f32, 0.2f64, 'a', true,
@@ -42,4 +46,7 @@ fn main() {
     let matrix = Matrix(1.1, 1.2, 2.1, 2.2);
     println!("{:?}", matrix);
     println!("{}", matrix);
+
+    println!("Matrix:\n{}", matrix);
+    println!("Transpose:\n{}", transpose(matrix));
 }