diff --git a/src/Assignment1/SquareRoot.sc b/src/Assignment1/SquareRoot.sc
index 6053d88..65994f2 100644
--- a/src/Assignment1/SquareRoot.sc
+++ b/src/Assignment1/SquareRoot.sc
@@ -15,4 +15,4 @@ def sqrt(x: Double, approx: Double): Double = if (
   sqrt(x, improve(x, approx))
 }
 
-sqrt(612, 10)
\ No newline at end of file
+sqrt(612, 10)
diff --git a/src/Assignment2/Ex1.sc b/src/Assignment2/Ex1.sc
new file mode 100644
index 0000000..c8415ff
--- /dev/null
+++ b/src/Assignment2/Ex1.sc
@@ -0,0 +1,17 @@
+import scala.annotation.tailrec
+
+def fib(x: Int): Int = if (x == 0 || x == 1) {x} else {
+  fib(x - 1) + fib(x - 2)
+}
+
+def fibTail(x: Int): Int = {
+  @tailrec
+  def fibTailStep(x: Int, a: Int, b: Int): Int = {
+    if (x == 0) {a}
+    else fibTailStep(x - 1, b, a + b)
+  }
+  fibTailStep(x, 0, 1)
+}
+
+fib(10)
+fibTail(10)
\ No newline at end of file