diff --git a/calculator.html b/calculator.html
index 839b37e4..46c34f8e 100644
--- a/calculator.html
+++ b/calculator.html
@@ -1,17 +1,28 @@
-<!DOCTYPE html><html><head>
-<title>Calculator</title><meta charset="utf-8">
+<!DOCTYPE html>
+<html>
+<head>
+<title>Calculator</title>
+<meta charset="utf-8">
+
 <script type="text/javascript">
 
 function square() {
   var num = document.getElementById("n1");
   num.value = num.value * num.value;
 }
+function cube() {
+	var num = document.getElementById("n1");
+	num.value = Math.pow(num.value,3);
+}
 </script>
+
 </head>
 <body>
-  Number:
-  <input type="text" id="n1"><p>
-
-  <button onclick="square()"> x<sup>2</sup> </button>
+	Número:
+	<input type="text" id="n1"><p></p>
+	<button onclick="square()"> x<sup>2</sup> </button>
+	<button onclick="cube()">x<sup>3</sup></button>
 </body>
 </html>
+
+
