JavaScript tan () method
Examples
It returns a tangent of a number of angles:
Math.tan(90);
Output:
-1.995200412208242
try it"
Definition and Usage
tan () method returns a digital representation of a tangent of the angle.
Browser Support
All major browsers support tan () method
grammar
Math.tan( x )
Parameter Value
| 参数 | 描述 |
|---|---|
| x | 必需。一个以弧度表示的角。将角度乘以 0.017453293 （2PI/360）即可转换为弧度。 |
return value
| 类型 | 描述 |
|---|---|
| Number | 角度的正切值 |
technical details
| JavaScript version: | 1.0 |
|---|
More examples
Examples
In this example, we will calculate the tangent different numbers:
var a=Math.tan(90);
var b=Math.tan(-90);
var c=Math.tan(45);
var d=Math.tan(60);
var b=Math.tan(-90);
var c=Math.tan(45);
var d=Math.tan(60);
a, b, c, and d output:
-1.995200412208242
1.995200412208242
1.6197751905438615
0.320040389379563
1.995200412208242
1.6197751905438615
0.320040389379563
try it"