# countZeroCrossings(_:) Returns the number of zero crossings in a double-precision vector. ``` static func countZeroCrossings(_ vector: U) -> UInt where U : AccelerateBuffer, U.Element == Double ``` --- 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)