# value(target:initialVelocity:time:) Calculates the value of the spring at a given time given a target amount of change. ``` func value(target: V, initialVelocity: V = .zero, time: TimeInterval) -> V where V : VectorArithmetic ``` --- 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)