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  5. acos

acos

acos(angle: Number): Number | NaN

Returns an arc cosine value that can range from 0.0 through pi.

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 it arc cosine value.

Example

This example shows how acos behaves with different inputs.

Source

%dw 2.0
import * from dw::util::Math
output application/json
---
{
  "acos0": acos(0),
  "acos13": acos(0.13),
  "acos-1": acos(-1),
  "acos1": acos(1),
  "acos1.1": acos(1.1)
}

Output

{
   "acos0": 1.5707963267948966,
   "acos13": 1.440427347091751,
   "acos-1": 3.141592653589793,
   "acos1": 0.0,
   "acos1.1": null
 }