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Showing content from https://webplatform.github.io/docs/javascript/Math/acos below:

acos · WebPlatform Docs

Returns the arc cosine (or inverse cosine) of a number.

Math.acos( number )

number

Required. The required number argument is a numeric expression.

The arc cosine of the number argument, in radians.

The following code shows how to use the acos function.

var v1 = Math.acos(-1.0);
 var v2 = Math.cos(-1.0);

 document.write(v1);
 document.write("<br/>");
 document.write(v2);

 
 
 

Applies To : Math Object

• Math.asin Function
• Math.atan Function
• Math.cos Function
• Math.sin Function
• Math.tan Function
• Math Object

• Microsoft Developer Network: Article

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