Computer >> Computer tutorials >  >> Programming >> Javascript

How to get the cosine of a number in JavaScript?


To get the cosine of a number in JavaScript, use the Math.cos() method. The cos method returns a numeric value between -1 and 1, which represents the cosine of the angle.

Example

You can try to run the following code to get the cosine of a number −

<html>
   <head>
      <title>JavaScript Math cos() Method</title>
   </head>
   <body>
      <script>
         var value = Math.cos(90);
         document.write("First Value : " + value );
         
         value = Math.cos(30);
         document.write("<br />Second Value : " + value );
         
         value = Math.cos(-1);
         document.write("<br />Third Value : " + value );
         
         value = Math.cos(2*Math.PI);
         document.write("<br />Fourth Value : " + value );
      </script>
   </body>
</html>