# sumAndSumOfSquares(_:) Returns the single-precision vector sum and sum of squares. ``` static func sumAndSumOfSquares(_ vector: U) -> (elementsSum: Float, squaresSum: Float) where U : AccelerateBuffer, U.Element == Float ``` ## Parameters `vector` The vector to sum. ## Discussion This function calculates and returns the sum and the sum of the squares of the elements of a supplied vector. The following is an example of using [`sumAndSumOfSquares(_:)`](/documentation/Accelerate/vDSP/sumAndSumOfSquares(_:)-9uec5): ```swift let a: [Float] = [-1.5, 2.25, 3.6, 0.2, -0.1, -4.3] let sumAndSumOfSquares = vDSP.sumAndSumOfSquares(a) // Prints "sum 0.1500 sum of squares 38.8125" print(String(format: "sum %.4f", sumAndSumOfSquares.elementsSum), String(format: "sum of squares %.4f", sumAndSumOfSquares.squaresSum)) ``` --- 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)