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  5. asin

asin

asin(angle: Number): Number | NaN

Returns an arc sine value that can range from -pi/2 through pi/2.

If the absolute value of the input is greater than 1, the result is null.

Introduced in DataWeave version 2.4.0.

Parameters

Name Description

angle

Number to convert into its arc sine value.

Example

This example shows how asin behaves with different inputs.

Source

%dw 2.0
import * from dw::util::Math
output application/json
---
{
  "asin0": asin(0),
  "asin13": asin(0.13),
  "asin-1": asin(-1),
  "asin1.1": asin(1.1)
}

Output

{
   "asin0": 0.0,
   "asin13": 0.1303689797031455,
   "asin-1": -1.5707963267948966,
   "asin1.1": null
 }