negativeAbsolute(_:)
Returns the negative absolute value of each element in the supplied double-precision vector.
Declaration
static func negativeAbsolute<U>(_ vector: U) -> [Double] where U : AccelerateBuffer, U.Element == DoubleParameters
- vector:
The source vector.
Discussion
For example, the following code calculates the negative absolute values of the elements of an array:
let values: [Double] = [-1, 2, -3, 4, -5, 6, -7, 8]
let negativeAbsoluteValues = vDSP.negativeAbsolute(values)
// Prints "[-1.0, -2.0, -3.0, -4.0, -5.0, -6.0, -7.0, -8.0]".
print(negativeAbsoluteValues)