Struct Sphere 

pub struct Sphere {}

This is the Sphere function.

The function is borrowed from here. Although the function accepts a vector with an arbitrary number of inputs, this is what it looks like in 2D:

Trait Implementations

impl NDimensional for Sphere

const D: usize = usize::MAX

This is a constant containing the correct dimensionality for the function

const LOW_D: usize = 2

This constant describes a low value to use for testing

const HIGH_D: usize = 137

This constant describes a high value to use for testing

impl SingleObjective for Sphere

const MINIMUM: f64 = 0.0

The global minimum is constant and zero

fn f(x: Vec<f64>) -> f64

Function for evaluating

fn minimizer(n: usize) -> Vec<f64>

This function returns the minimizer (argument that will return the global minimum

fn check_minimizer(d: usize)

This function is used for testing, and checks the correctness of the minimizer

impl UnBounded for Sphere

const BOUNDS: (f64, f64) = _

The bounds of the canonical optimization problem

fn in_bounds(_x: Vec<f64>) -> bool

Function to check bounds

impl UnConstrained for Sphere

const CONSTRAINED: bool = false

This trait indicates that the function is unconstrained