Enum LinalgError 

pub enum LinalgError {
    Singular,
    NotPositiveDefinite,
    ConvergenceFailure,
}

Errors from linear algebra operations.

Returned by decomposition constructors and convenience methods (solve, inverse, cholesky, qr, lu).

use numeris::Matrix;
use numeris::linalg::LinalgError;

let singular = Matrix::new([[1.0_f64, 2.0], [2.0, 4.0]]);
assert_eq!(singular.lu().unwrap_err(), LinalgError::Singular);

let not_pd = Matrix::new([[1.0_f64, 5.0], [5.0, 1.0]]);
assert_eq!(not_pd.cholesky().unwrap_err(), LinalgError::NotPositiveDefinite);

Variants

Singular

Matrix is singular or nearly singular.

NotPositiveDefinite

Matrix is not positive definite (required for Cholesky).

ConvergenceFailure

Iterative algorithm did not converge within the iteration budget.

Trait Implementations

impl Clone for LinalgError

fn clone(&self) -> LinalgError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LinalgError

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

Formats the value using the given formatter.

impl Display for LinalgError

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

Formats the value using the given formatter.

impl PartialEq for LinalgError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for LinalgError

impl StructuralPartialEq for LinalgError