Trait HessianAccumulate 

pub trait HessianAccumulate<const D: usize, const I: usize> {
    // Required method
    fn accumulate(&mut self, a: usize, b: usize, block: TensorRank2<D, I, I>);
}

Accumulates rank-2 blocks into a sparse Hessian-like structure.

Symmetric-safe: the caller guarantees block at (a, b) equals the transpose of the (b, a) contribution, so implementors may store or mirror as they see fit.

Required Methods

fn accumulate(&mut self, a: usize, b: usize, block: TensorRank2<D, I, I>)

Implementors

impl<const D: usize, const I: usize> HessianAccumulate<D, I> for TensorRank2SparseVec2DSymmetric<D, I, I>

impl<const D: usize, const I: usize> HessianAccumulate<D, I> for TensorRank2SparseVec2D<D, I, I>