---
title: "multiply(addition:subtraction:)"
framework: accelerate
role: symbol
role_heading: Type Method
path: "accelerate/vdsp/multiply(addition:subtraction:)-6h89l"
---

# multiply(addition:subtraction:)

Returns the single-precision element-wise product of the sum of two vectors and the difference of two vectors.

## Declaration

```swift
static func multiply<R, S, T, U>(addition: (a: R, b: S), subtraction: (c: T, d: U)) -> [Float] where R : AccelerateBuffer, S : AccelerateBuffer, T : AccelerateBuffer, U : AccelerateBuffer, R.Element == Float, S.Element == Float, T.Element == Float, U.Element == Float
```

## Parameters

- `addition`: A tuple that contains the vectors A and B in E = (A + B) * (C - D).
- `subtraction`: A tuple that contains the vectors C and D in E = (A + B) * (C - D).

## Mentioned in

Using vDSP for vector-based arithmetic

## Return Value

Return Value The output vector E in E = (A + B) * (C - D).

## Discussion

Discussion This function calculates the products of the first N elements of the addition of vectors A and B and the subtraction of vectors C and D.  for (n = 0; n < N; ++n)     E[n] = (B[n]+A[n]) * (C[n]-D[n]);

The following code shows an example of using this function:     let a: [Float] = [ 1,  2,  3,  4,  5]     let b: [Float] = [10, 20, 30, 40, 50]     let c: [Float] = [ 5,  4,  3,  2,  1]     let d: [Float] = [50, 40, 30, 20, 10]               let e = vDSP.multiply(addition: (a, b),                           subtraction: (c, d))          // Prints "[-495.0, -792.0, -891.0, -792.0, -495.0]".     print(e)

## See Also

### Multiplication

- [multiply(_:_:)](accelerate/vdsp/multiply(_:_:)-9dxnc.md)
- [multiply(_:_:)](accelerate/vdsp/multiply(_:_:)-1ckqt.md)
- [multiply(_:_:)](accelerate/vdsp/multiply(_:_:)-993yp.md)
- [multiply(_:_:)](accelerate/vdsp/multiply(_:_:)-9zgw.md)
- [multiply(_:_:result:)](accelerate/vdsp/multiply(_:_:result:)-4xorc.md)
- [multiply(_:_:result:)](accelerate/vdsp/multiply(_:_:result:)-358cn.md)
- [multiply(_:_:result:)](accelerate/vdsp/multiply(_:_:result:)-3ptjl.md)
- [multiply(_:_:result:)](accelerate/vdsp/multiply(_:_:result:)-155f3.md)
- [multiply(_:by:count:useConjugate:result:)](accelerate/vdsp/multiply(_:by:count:useconjugate:result:)-4idx8.md)
- [multiply(_:by:count:useConjugate:result:)](accelerate/vdsp/multiply(_:by:count:useconjugate:result:)-79r8u.md)
- [multiply(_:by:result:)](accelerate/vdsp/multiply(_:by:result:)-8b9eq.md)
- [multiply(_:by:result:)](accelerate/vdsp/multiply(_:by:result:)-8jyhd.md)
- [multiply(addition:_:)](accelerate/vdsp/multiply(addition:_:)-4c9in.md)
- [multiply(addition:_:)](accelerate/vdsp/multiply(addition:_:)-1wt61.md)
- [multiply(addition:_:)](accelerate/vdsp/multiply(addition:_:)-4fnbx.md)