cos cos(angle: Number): Number Returns the trigonometric cosine of an angle from a given number of radians. Introduced in DataWeave version 2.4.0. Parameters Name Description angle Number of radians in an angle. Example This example shows how cos behaves with different inputs. Source %dw 2.0 import * from dw::util::Math output application/json --- { "cos0": cos(0), "cos13": cos(0.13), "cos-1": cos(-1) } Output { "cos0": 1.0, "cos13": 0.9915618937147881, "cos-1": 0.5403023058681398 }