# negativeAbsolute(_:) Returns the negative absolute value of each element in the supplied single-precision vector. ``` static func negativeAbsolute(_ vector: U) -> [Float] where U : AccelerateBuffer, U.Element == Float ``` ## Parameters `vector` The source vector. ## Discussion For example, the following code calculates the negative absolute values of the elements of an array: ```swift let values: [Float] = [-1, 2, -3, 4, -5, 6, -7, 8] let negativeAbsoluteValues = vDSP.negativeAbsolute(values) // Prints "[-1.0, -2.0, -3.0, -4.0, -5.0, -6.0, -7.0, -8.0]". print(negativeAbsoluteValues) ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)