JavaScript - Math cos Method
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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
Its syntax is as follows −
Math.cos( x ) ;
Parameter Details
x − A numbers.
Return Value
Returns the cosine of a number.
Example
Try the following example program.
Live Demo<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>
Output
First Test Value : -0.4480736161291702 Second Test Value : 0.15425144988758405 Third Test Value : 0.5403023058681398 Fourth Test Value : 1
javascript_math_object.htm
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