Struct Halley 

pub struct Halley { /* private fields */ }

Halley optimization algorithm

This struct configures the Halley method, a third-order optimizer that uses tensor of third order derivatives.

Fields

• max_steps - Maximum number of optimization steps.
• gtol - Optional tolerance for gradient norm (stop if ||grad|| < gtol).
• ftol - Optional tolerance for change in objective value (stop if |f - prev_f| < ftol).

Implementations

impl Halley

pub fn new(max_steps: usize, gtol: Option<f64>, ftol: Option<f64>) -> Self

Creates a new Halley optimizer with the given parameters.

Arguments

• max_steps - Maximum iterations.
• gtol - Optional gradient tolerance.
• ftol - Optional function value change tolerance.

Returns

Configured Halley instance.

Trait Implementations

impl Display for Halley

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

Formats the value using the given formatter.

impl Optimizer for Halley

fn optimize( &self, function: &dyn Fn(&Tensor) -> Tensor, x0: &Tensor, ) -> Result<Tensor>

Solves the problem of optimization of function function starting from point x0