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Wednesday, March 12, 2014

Posted by amikitinfo
No comments | 9:32 PM

Javascript Math - tan Method

Description:

This method returns the tangent of a number. The tan method returns a numeric value that represents the tangent of the angle.

Syntax:

Math.tan( x ) ;
Here is the detail of parameters:
  • x: A number representing an angle in radians.

Return Value:

Returns the tangent of a number.

Example:

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

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

var value = Math.tan( 45 );
document.write("<br />Third Test Value : " + value ); 

var value = Math.tan( Math.PI/180 );
document.write("<br />Fourth Test Value : " + value ); 
</script>
</body>
</html>
This will produce following result:
First Test Value : 1
Second Test Value : 21
Third Test Value : 20
Fourth Test Value : -20 
 
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