JavaScript asin()Method
JavaScript Math ObjectDefinition and Usage
The asin() method returns the arc sine in radians between -PI/2 and PI/2.
Note:If the parameter x exceeds the range of -1.0 to 1.0, the browser will return NaN.
Tip:If the parameter x is 1, then PI/2 will be returned.
Browser Support
All major browsers support the asin() method
Syntax
Math.asin(x)
Parameter Values
| Parameter | Description |
|---|---|
| x | Required. Must be a number, with a value between -1.0 and 1.0. |
Return Value
| Type | Description |
|---|---|
| Number | The arcsine of x. The returned value is in radians between -PI/2 and PI/2. |
Technical Details
| JavaScript Version: | 1.0 |
|---|
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