Struct Residual 

pub struct Residual {
    pub control: Scalar,
    pub cut_back: Scalar,
    pub max_steps: usize,
}

The Armijo condition on half the squared norm of the residual.

Fields

control: Scalar

cut_back: Scalar

max_steps: usize

Trait Implementations

impl Clone for Residual

fn clone(&self) -> Residual

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Residual

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

Formats the value using the given formatter.

impl Default for Residual

fn default() -> Self

Returns the “default value” for a type.

impl Display for Residual

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

Formats the value using the given formatter.

impl ResidualMerit for Residual

fn search_residual( &self, merit: impl FnMut(Scalar) -> Result<Scalar, String>, value: Scalar, fraction: Scalar, ) -> Result<Scalar, LineSearchError>

Backtrack on the residual merit of the step size alone.

const SEARCHES: bool = true

Whether anything is searched at all.

const MERIT: bool = true

Whether the value of the merit is read, and so worth preparing.