Struct Beale 

pub struct Beale;

Beale Function f(x₁,x₂) = (1.5 - x₁ + x₁x₂)² + (2.25 - x₁ + x₁x₂²)² + (2.625 - x₁ + x₁x₂³)² Global minimum: f(3, 0.5) = 0

Implementations

impl Beale

pub fn new() -> Self

Create a new instance of the Beale function

Trait Implementations

impl Debug for Beale

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

Formats the value using the given formatter.

impl ObjectiveFunction for Beale

fn evaluate(&self, x: &Array1<f64>) -> f64

Evaluate the objective function at a given point

fn dimensions(&self) -> usize

Get the number of dimensions of the problem

fn bounds(&self) -> (Vec<f64>, Vec<f64>)

Get the bounds of the search space

impl TestFunction for Beale

fn global_minimum(&self) -> f64

Get the known global minimum value

fn global_minimum_position(&self) -> Array1<f64>

Get the known global minimum position

fn name(&self) -> &'static str

Get the name of the test function

fn test_3d_surface( &self, n_points: usize, ) -> (Array2<f64>, Array2<f64>, Array2<f64>)