Struct NumericalRange 

pub struct NumericalRange {
    pub boundary_samples: Vec<(f64, f64)>,
    pub is_normal: bool,
}

Represents the numerical range (field of values) of an operator.

Fields

boundary_samples: Vec<(f64, f64)>

Boundary points sampled at regular angles.

is_normal: bool

Whether the operator is normal (numerical range = convex hull of spectrum).

Implementations

impl NumericalRange

pub fn from_eigenvalues(eigenvalues: &[f64]) -> Self

Creates a numerical range from eigenvalues (normal operator case).

pub fn numerical_radius(&self) -> f64

Returns the numerical radius: max{|z| : z in W(A)}.

pub fn contains_zero(&self, tol: f64) -> bool

Checks if 0 is in the numerical range (relevant for invertibility).

Trait Implementations

impl Clone for NumericalRange

fn clone(&self) -> NumericalRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NumericalRange

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

Formats the value using the given formatter.