Struct SparseMatrix 

pub struct SparseMatrix { /* private fields */ }

A read-only sparse matrix in compressed-sparse-row form.

Implementations

impl SparseMatrix

pub fn from_triplets( rows: usize, cols: usize, triplets: &[(usize, usize, f64)], ) -> Self

Build from (row, column, value) triplets. Duplicate positions sum, which is what an assembly loop wants; explicit zeros are kept out.

Panics

If a triplet indexes outside rows × cols.

pub fn shape(&self) -> (usize, usize)

The shape, (rows, cols).

pub fn stored(&self) -> usize

The number of stored entries.

pub fn multiply(&self, x: &[f64]) -> Vec<f64>

y = A·x.

Panics

If x is not cols long.

pub fn transpose_multiply(&self, x: &[f64]) -> Vec<f64>

y = Aᵀ·x.

Panics

If x is not rows long.

Trait Implementations

impl Clone for SparseMatrix

fn clone(&self) -> SparseMatrix

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SparseMatrix

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.