40 lines
707 B
Markdown
40 lines
707 B
Markdown
---
|
|
title: math.asin() function
|
|
description: The math.asin() function returns the arcsine of `x` in radians.
|
|
aliases:
|
|
- /v2.0/reference/flux/functions/math/asin/
|
|
menu:
|
|
v2_0_ref:
|
|
name: math.asin
|
|
parent: Math
|
|
weight: 301
|
|
---
|
|
|
|
The `math.asin()` function returns the arcsine of `x` in radians.
|
|
|
|
_**Output data type:** Float_
|
|
|
|
```js
|
|
import "math"
|
|
|
|
math.asin(x: 0.22)
|
|
|
|
// Returns 0.22181447049679442
|
|
```
|
|
|
|
## Parameters
|
|
|
|
### x
|
|
The value used in the operation.
|
|
`x` should be greater than -1 and less than 1.
|
|
Otherwise, the function will return `NaN`.
|
|
|
|
_**Data type:** Float_
|
|
|
|
## Special cases
|
|
```js
|
|
math.asin(x: ±0) // Returns ±0
|
|
math.asin(x: <-1) // Returns NaN
|
|
math.asin(x: >1) // Returns NaN
|
|
```
|