# trunc(_:) Returns each element in a vector rounded toward zero to the nearest integer. ``` func trunc(_ x: SIMD3) -> SIMD3 ``` --- 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)