diff --git a/calculator.html b/calculator.html
index 839b37e4..5d783525 100644
--- a/calculator.html
+++ b/calculator.html
@@ -1,17 +1,22 @@
-<!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;
-}
-</script>
-</head>
-<body>
-  Number:
-  <input type="text" id="n1"><p>
-
-  <button onclick="square()"> x<sup>2</sup> </button>
-</body>
-</html>
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Calculator</title><meta charset="utf-8">
+    <script type="text/javascript">
+    function inverse() {
+        var num = document.getElementById("n1");
+        num.value = 1/num.value;
+    }
+    function square() {
+      var num = document.getElementById("n1");
+      num.value = num.value * num.value;
+    }
+    </script>
+  </head>
+  <body>
+    <h1>Víctor Loureiro Sancho</h1>
+    Number:
+    <input type="text" id="n1"><p>
+    <button onclick="inverse()"> 1/x </button>
+    <button onclick="square()"> x<sup>2</sup> </button>
+  </body>
\ No newline at end of file
