Struct IsolationStats 

pub struct IsolationStats {
    pub sturm_evaluations: usize,
    pub descartes_tests: usize,
    pub bisection_steps: usize,
    pub intervals_generated: usize,
    pub incomplete: bool,
}

Root isolation statistics.

Fields

sturm_evaluations: usize

Number of Sturm sequence evaluations

descartes_tests: usize

Number of Descartes tests

bisection_steps: usize

Number of bisection steps

intervals_generated: usize

Total intervals generated

incomplete: bool

Set to true if the bisection search ever hit MAX_ROOT_ISOLATION_DEPTH before narrowing a sub-interval down to exactly one root.

With a correct Sturm sequence and exact rational bisection this should never happen for any well-formed polynomial: distinct real roots always have a positive minimum pairwise separation, so repeated bisection is mathematically guaranteed to isolate each one eventually. A true value indicates a pathological input or an upstream bug, and it also means RootIsolator::isolate_roots’s returned list may be missing one or more roots for the affected sub-interval – this flag makes that condition visible instead of it being a silently-incomplete result.

Trait Implementations

impl Clone for IsolationStats

fn clone(&self) -> IsolationStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IsolationStats

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

Formats the value using the given formatter.

impl Default for IsolationStats

fn default() -> IsolationStats

Returns the “default value” for a type.