JavaScript acos() Method

Definition and Usage The acos() method returns the arccosine of a number as a numeric value value between 0 and PI radians. Syntax M...

Definition and Usage

The acos() method returns the arccosine of a number as a numeric value value between 0 and PI radians.

Syntax

Math.acos(x)

Parameter Description
x Required. Must be a numeric value in the range -1 to 1


Tips and Notes

Note: If the parameter x is outside the range -1 to 1, the browser will return NaN.
Note: -1 will return the value of PI.

Example

In this example we will get the arccosine of different numbers:

<script type="text/javascript">
document.write(Math.acos(0.64) + "<br />");
document.write(Math.acos(0) + "<br />");
document.write(Math.acos(-1) + "<br />");
document.write(Math.acos(1) + "<br />");
document.write(Math.acos(2));
</script>

The output of the code above will be:

0.8762980611683406
1.5707963267948965
3.141592653589793
0
NaN 
Name

ADO,131,ASP,3,C++,61,CORE JAVA,1,CSS,115,HTML,297,index,5,JAVASCRIPT,210,OS,47,PHP,65,SAD,53,SERVLETS,23,SOFTWARE ENGINEERING,245,SQL,71,TCP/IP,1,XHTML,9,XML,18,
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Best Online Tutorials | Source codes | Programming Languages: JavaScript acos() Method
JavaScript acos() Method
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