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JavaScript tan() Method
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
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>
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
1.995200412208242
1.6197751905438615
0.320040389379563
Try it yourself »
JavaScript Math Object
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Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
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Copyright 1999-2012 by Refsnes Data. All Rights Reserved.
Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2012 by Refsnes Data. All Rights Reserved.