# vSzaxpy(_:_:_:_:_:) Multiplies a vector by a scalar, adds it to a second vector, and stores the result in a third vector. ``` func vSzaxpy(_ n: Int32, _ alpha: Float, _ x: UnsafePointer, _ y: UnsafePointer, _ z: UnsafeMutablePointer) ``` ## Parameters `n` number of elements in vectors `x`, `y`, and `z`; must be a multiple of 4. `alpha` multiplier. `x` source vector with `n` elements of type `float`. `y` source vector with `n` elements of type `float`. `z` source vector with `n` elements of type `float`. ## Discussion Each element of vector `x` is multiplied by `alpha`, then the corresponding element of `yY` is added. Results are stored in the corresponding elements of `z`. --- 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)