diff --git a/index.html b/index.html
index 02db980..bf8a9fe 100644
--- a/index.html
+++ b/index.html
@@ -165,6 +165,9 @@ <h1>cot</h1>
                                                         <button class="button complex-stuff">
                                                             <h1>&#8731;</h1>
                                                             </button>
+                                                        <button class="button complex-stuff">
+                                                            <h1>arccot</h1>
+                                                            </button>
 
                     </div>
                 </div>
diff --git a/script.js b/script.js
index 584f990..7a6ac8d 100644
--- a/script.js
+++ b/script.js
@@ -49,6 +49,7 @@ Array.prototype.forEach.call(buttons, function (button) {
       trimmedButtonValue != "sec" &&
       trimmedButtonValue != "cosec" &&
       trimmedButtonValue != "cot" &&
+      trimmedButtonValue != "arccot" &&
       trimmedButtonValue != "\u221B"
     ) {
       display.value += trimmedButtonValue;
@@ -109,6 +110,9 @@ Array.prototype.forEach.call(buttons, function (button) {
     else if (trimmedButtonValue === "cot"){
       calculatecot();
     }
+    else if (trimmedButtonValue === "arccot"){
+      calculatearccot();
+    }
     else if (trimmedButtonValue === "\u221B"){
       
       calculatecuberoot();
@@ -283,6 +287,9 @@ function calculatecosec() {
 function calculatecot() {
   display.value=Math.cos((Math.PI/180)*display.value)/Math.sin((Math.PI/180)*display.value);
 }
+function calculatearccot() {
+  display.value = (Math.PI/2 - Math.atan(display.value));
+}
 //cuberoot function 
 function calculatecuberoot(){
   console.log('cuberoot');