Enum RootError 

pub enum RootError {
    InvalidInterval,
    InvalidTolerance,
    MaxIterationsReached,
    NonFiniteValue,
    ZeroDerivative,
}

Failure modes for approximate iterative root finders.

Variants

InvalidInterval

The initial interval does not bracket a root.

InvalidTolerance

The configured tolerance is not finite and positive.

MaxIterationsReached

The solver did not converge within the iteration budget.

NonFiniteValue

A function evaluation, derivative evaluation, or iterate became non-finite.

ZeroDerivative

A Newton-Raphson step encountered an approximately zero derivative.

Trait Implementations

impl Clone for RootError

fn clone(&self) -> RootError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RootError

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

Formats the value using the given formatter.

impl PartialEq for RootError

fn eq(&self, other: &RootError) -> 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 RootError

impl Eq for RootError

impl StructuralPartialEq for RootError