# distance_squared(_:_:) Returns the square of the distance between two vectors. ``` func distance_squared(_ x: SIMD3, _ y: SIMD3) -> Float ``` --- 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)