Struct argmin::solver::conjugategradient::beta::PolakRibiere

pub struct PolakRibiere {}

Polak and Ribiere (PR) method

Implementations

impl PolakRibiere

pub fn new() -> Self

Construct a new instance of PolakRibiere.

Example

let beta_method = PolakRibiere::new();

Trait Implementations

impl Clone for PolakRibiere

fn clone(&self) -> PolakRibiere

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PolakRibiere

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

Formats the value using the given formatter.

impl Default for PolakRibiere

fn default() -> PolakRibiere

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PolakRibiere

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<G, P, F> NLCGBetaUpdate<G, P, F> for PolakRibiere

where G: ArgminDot<G, F> + ArgminSub<G, G> + ArgminL2Norm<F>, F: ArgminFloat,

fn update(&self, dfk: &G, dfk1: &G, _pk: &P) -> F

Update beta using the Polak-Ribiere method.

Formula: <\nabla f_{k+1}, (\nabla f_{k+1} - \nabla f_k)> / ||\nabla f_k||^2

Example

let beta_method = PolakRibiere::new();
let beta = beta_method.update(&dfk, &dfk1, &());

impl Serialize for PolakRibiere

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for PolakRibiere