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JavaScript tan() Method


Math Object Reference JavaScript Math Object

Definition and Usage

The tan() method returns a number that represents the tangent of an angle.

Syntax

Math.tan(x)

Parameter Description
x Required. A number representing an angle (in radians)


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The tan() method is supported in all major browsers.


Example

Example

Return the tangent of different angles:

<script type="text/javascript">

document.write(Math.tan(90) + "<br />");
document.write(Math.tan(-90) + "<br />");
document.write(Math.tan(45) + "<br />");
document.write(Math.tan(60));

</script>

The output of the code above will be:

-1.995200412208242
1.995200412208242
1.6197751905438615
0.320040389379563

Try it yourself »


Math Object Reference JavaScript Math Object

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