Struct SymMatrix 

pub struct SymMatrix {
    pub rows: usize,
    pub cols: usize,
    pub data: Vec<Vec<Expr>>,
}

A symbolic matrix of expressions.

Fields

rows: usize

cols: usize

data: Vec<Vec<Expr>>

Implementations

impl SymMatrix

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

pub fn identity(n: usize) -> Self

pub fn from_f64(data: &[&[f64]]) -> Self

pub fn get(&self, r: usize, c: usize) -> &Expr

pub fn set(&mut self, r: usize, c: usize, val: Expr)

pub fn mul(&self, other: &SymMatrix) -> SymMatrix

Matrix multiplication.

pub fn transpose(&self) -> SymMatrix

Transpose.

pub fn determinant(&self) -> Expr

Determinant (recursive cofactor expansion).

pub fn minor(&self, row: usize, col: usize) -> Expr

Minor: determinant of the submatrix with row i and col j removed.

pub fn cofactor(&self, row: usize, col: usize) -> Expr

Cofactor: (-1)^(i+j) * minor(i,j).

pub fn submatrix(&self, row: usize, col: usize) -> SymMatrix

Remove row i and column j.

pub fn trace(&self) -> Expr

Trace: sum of diagonal elements.

pub fn eigenvalues_2x2(&self) -> Option<(f64, f64)>

Numerical eigenvalues for a 2x2 matrix.

Trait Implementations

impl Clone for SymMatrix

fn clone(&self) -> SymMatrix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SymMatrix

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

Formats the value using the given formatter.