Struct Matrix 

pub struct Matrix { /* private fields */ }

A dense row-major matrix of f64.

Implementations

impl Matrix

pub fn zeros(rows: usize, cols: usize) -> Self

A rows x cols matrix of zeros.

pub fn identity(n: usize) -> Self

The n x n identity.

pub fn from_fn( rows: usize, cols: usize, f: impl FnMut(usize, usize) -> f64, ) -> Self

A matrix whose entry (i, j) is f(i, j).

pub fn from_rows(rows: &[&[f64]]) -> NumericResult<Self>

A matrix from rows of equal length.

Errors

Refuses rows of different lengths.

pub fn rows(&self) -> usize

Number of rows.

pub fn cols(&self) -> usize

Number of columns.

pub fn row(&self, i: usize) -> &[f64]

Row i as a slice.

pub fn transpose(&self) -> Self

The transpose.

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

A x.

Errors

Refuses x whose length is not the column count.

pub fn norm1(&self) -> f64

The 1-norm: the largest column sum of absolute values.

Trait Implementations

impl Clone for Matrix

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Matrix

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

Formats the value using the given formatter.

impl Index<(usize, usize)> for Matrix

type Output = f64

The returned type after indexing.

fn index(&self, (i, j): (usize, usize)) -> &f64

Performs the indexing (container[index]) operation.

impl IndexMut<(usize, usize)> for Matrix

fn index_mut(&mut self, (i, j): (usize, usize)) -> &mut f64

Performs the mutable indexing (container[index]) operation.

impl PartialEq for Matrix

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Matrix