Struct argmin::solver::conjugategradient::beta::HestenesStiefel

pub struct HestenesStiefel {}

Hestenes and Stiefel (HS) method

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

Implementations

impl HestenesStiefel

pub fn new() -> Self

Construct a new instance of HestenesStiefel.

Example

let beta_method = HestenesStiefel::new();

Trait Implementations

impl Clone for HestenesStiefel

fn clone(&self) -> HestenesStiefel

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HestenesStiefel

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

Formats the value using the given formatter.

impl Default for HestenesStiefel

fn default() -> HestenesStiefel

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for HestenesStiefel

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 HestenesStiefel

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

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

Update beta using the Hestenes-Stiefel method.

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

Example

let beta_method = HestenesStiefel::new();
let beta: f64 = beta_method.update(&dfk, &dfk1, &pk);

impl Serialize for HestenesStiefel

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 HestenesStiefel