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Thursday, March 27, 2014

Posted by amikitinfo
No comments | 9:36 PM

Javascript Math - cos Method

Description:

This method returns the cosine of a number. The cos method returns a numeric value between -1 and 1, which represents the cosine of the angle.

Syntax:

Math.cos( x ) ;
Here is the detail of parameters:
  • x : A numbers.

Return Value:

Returns the cosine of a number.

Example:

<html>
<head>
<title>JavaScript Math cos() Method</title>
</head>
<body>
<script type="text/javascript">

var value = Math.cos(90);
document.write("First Test Value : " + value ); 
  
var value = Math.cos(30);
document.write("<br />Second Test Value : " + value ); 

var value = Math.cos(-1);
document.write("<br />Third Test Value : " + value ); 

var value = Math.cos(2*Math.PI);
document.write("<br />Fourth Test Value : " + value ); 
</script>
</body>
</html>
This will produce following result:
First Test Value : -0.4480736161291701
Second Test Value : 0.15425144988758405
Third Test Value : 0.5403023058681398
Fourth Test Value : 1 
 
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