Required Associated Typeswift 6.1.2_Differentiation

TangentVector

A type representing a differentiable value’s derivatives.

associatedtype TangentVector : AdditiveArithmetic, Differentiable where Self.TangentVector == Self.TangentVector.TangentVector

Mathematically, this is equivalent to the tangent bundle of the differentiable manifold represented by the differentiable type.