Function

# vDSP_vnabsD(_:_:_:_:_:)

Calculates the negative absolute value of each element in the supplied double-precision vector using specified stride.

## Discussion

This function is the same as `vDSP_vnabs(_:_:_:_:_:)`, except for the types of vectors `A` and `C`.

### Single-Vector Absolute Value

`static func absolute<U>(U) -> [Double]`

Returns the absolute value of each element in the supplied double-precision vector.

`static func absolute<U>(U) -> [Float]`

Returns the absolute value of each element in the supplied single-precision vector.

`static func absolute<V>(DSPSplitComplex, result: inout V)`

Calculates the absolute value of each element in the supplied single-precision complex vector.

`static func absolute<V>(DSPDoubleSplitComplex, result: inout V)`

Calculates the absolute value of each element in the supplied double-precision complex vector.

`static func absolute<U, V>(U, result: inout V)`

Calculates the absolute value of each element in the supplied double-precision vector.

`static func absolute<U, V>(U, result: inout V)`

Calculates the absolute value of each element in the supplied single-precision vector.

`func vDSP_vabs(UnsafePointer<Float>, vDSP_Stride, UnsafeMutablePointer<Float>, vDSP_Stride, vDSP_Length)`

Calculates the absolute value of each element in the supplied single-precision vector using specified stride.

`func vDSP_vabsD(UnsafePointer<Double>, vDSP_Stride, UnsafeMutablePointer<Double>, vDSP_Stride, vDSP_Length)`

Calculates the absolute value of each element in the supplied double-precision vector using specified stride.

`func vDSP_vabsi(UnsafePointer<Int32>, vDSP_Stride, UnsafeMutablePointer<Int32>, vDSP_Stride, vDSP_Length)`

Calculates the absolute value of each element in the supplied integer vector using specified stride.

`func vDSP_vnabs(UnsafePointer<Float>, vDSP_Stride, UnsafeMutablePointer<Float>, vDSP_Stride, vDSP_Length)`

Calculates the negative absolute value of each element in the supplied single-precision vector using specified stride.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.