Type Alias QuantitySparseVec2D 

pub type QuantitySparseVec2D<U = Dimensionless> = TensorVector<QuantitySparseVec<U>>;

A vector of sparse vectors of quantities, storing only inserted entries.

Aliased Type

pub struct QuantitySparseVec2D<U = Dimensionless>(/* private fields */);

Implementations

impl<U> QuantitySparseVec2D<U>

pub fn zero(len: usize) -> Self

Trait Implementations

impl<U> FiniteDifference for QuantitySparseVec2D<U>

fn error_fd( &self, comparator: &Self, epsilon: TensorRank0, ) -> Option<(bool, usize)>

impl<U> Hessian for QuantitySparseVec2D<U>

fn quadratic_form(&self, vector: &Vector) -> Scalar

The quadratic form of the Hessian with a vector.

fn entry(&self, row: usize, column: usize) -> Scalar

The entry at the given (row, column) position.

fn fill_into(self, square_matrix: &mut SquareMatrix)

Fills the Hessian into a square matrix.

fn retain_from(self, retained: &[bool]) -> SquareMatrix

Return only the retained indices.