SIMD8

extension SIMD8: ElementaryFunctions where Scalar: ElementaryFunctions

extension SIMD8: AdditiveArithmetic where Scalar: FloatingPoint

extension SIMD8: Differentiable
where
  Scalar: Differentiable & BinaryFloatingPoint,
  Scalar.TangentVector: BinaryFloatingPoint

extension SIMD8: EuclideanDifferentiable
where
  Scalar: EuclideanDifferentiable & BinaryFloatingPoint,
  Scalar.TangentVector: BinaryFloatingPoint

extension SIMD8
where
  Scalar: Differentiable & BinaryFloatingPoint,
  Scalar.TangentVector == Scalar

`Scalar`: `Differentiable` 및 `BinaryFloatingPoint`, `Scalar.TangentVector`: `BinaryFloatingPoint`에서 사용 가능

• 탄젠트벡터
  선언

  public typealias TangentVector = SIMD8

• zeroTangentVectorInitializer
  선언

  public var zeroTangentVectorInitializer: () -> TangentVector { get }

`Scalar`: `Differentiable` & `BinaryFloatingPoint`, `Scalar.TangentVector` == `Scalar`에서 사용 가능

• 아래첨자(_:)
  선언

  @derivative
  subscript(_: <<error type>>) -> <<error type>> { get }