JavaScript tan() Method
Example
Return the tangent of a number (angle):
Math.tan(90);
The result will be:
-1.995200412208242
Try it Yourself »
More "Try it Yourself" examples below.
Definition and Usage
The tan() method returns a number that represents the tangent of an angle.
Browser Support
| Method | |||||
|---|---|---|---|---|---|
| tan() | Yes | Yes | Yes | Yes | Yes |
Syntax
Math.tan(x)
Parameter Values
| Parameter | Description |
|---|---|
| x | Required. A number representing an angle (in radians) |
Technical Details
| Return Value: | A Number, representing the tangent of an angle |
|---|---|
| JavaScript Version: | 1.0 |
More Examples
Example
Return the tangent of different angles:
var a = Math.tan(90);
var b = Math.tan(-90);
var c = Math.tan(45);
var d = Math.tan(60);
The result of a,b,c, and d will be:
-1.995200412208242
1.995200412208242
1.6197751905438615
0.320040389379563
Try it Yourself »
JavaScript Math Object
