Type Alias DerivativeGrid 

pub type DerivativeGrid<P> = SmallVec<[SmallVec<[P; 4]>; 4]>;

Derivatives up to a small order in each direction, inline: the kernel asks for jets of order two, and the innermost evaluation loops must not pay heap for their own scratch.

Aliased Type

pub struct DerivativeGrid<P> { /* private fields */ }