---
title: "vSnaxpy(_:_:_:_:_:)"
framework: accelerate
role: symbol
role_heading: Function
path: "accelerate/vsnaxpy(_:_:_:_:_:)"
---

# vSnaxpy(_:_:_:_:_:)

Performs the computation of vSaxpy n times, using a different multiplier each time.

## Declaration

```swift
func vSnaxpy(_ n: Int32, _ m: Int32, _ a: UnsafePointer<vFloat>, _ x: UnsafePointer<vFloat>, _ y: UnsafeMutablePointer<vFloat>)
```

## Parameters

- `n`: Number of elements in vector a; must be a multiple of 4.
- `m`: Number of elements in each of the vectors x and y; must be a multiple of 4.
- `a`: A vector array of float values.
- `x`: A second vector array of float values.
- `y`: A second vector array of float values.

## Discussion

Discussion For i = 0 to n-1, the elements of x are multiplied by a[i] and added to the corresponding elements of y.  The results are accumulated and stored in y.

## See Also

### Vector-Scalar Linear Algebra Functions (from vectorOps.h)

- [vIsamax(_:_:)](accelerate/visamax(_:_:).md)
- [vIsamin(_:_:)](accelerate/visamin(_:_:).md)
- [vIsmax(_:_:)](accelerate/vismax(_:_:).md)
- [vIsmin(_:_:)](accelerate/vismin(_:_:).md)
- [vSasum(_:_:)](accelerate/vsasum(_:_:).md)
- [vSsum(_:_:)](accelerate/vssum(_:_:).md)
- [vSaxpy(_:_:_:_:)](accelerate/vsaxpy(_:_:_:_:).md)
- [vScopy(_:_:_:)](accelerate/vscopy(_:_:_:).md)
- [vSdot(_:_:_:)](accelerate/vsdot(_:_:_:).md)
- [vSndot(_:_:_:_:_:_:)](accelerate/vsndot(_:_:_:_:_:_:).md)
- [vSnrm2(_:_:)](accelerate/vsnrm2(_:_:).md)
- [vSnorm2(_:_:)](accelerate/vsnorm2(_:_:).md)
- [vSrot(_:_:_:_:_:)](accelerate/vsrot(_:_:_:_:_:).md)
- [vSscal(_:_:_:)](accelerate/vsscal(_:_:_:).md)
- [vSswap(_:_:_:)](accelerate/vsswap(_:_:_:).md)