Struct BoxConstraint 

pub struct BoxConstraint {
    pub lb: Array1<f32>,
    pub ub: Array1<f32>,
}

Box (bound) constraint: lb[i] <= x[i] <= ub[i] for all i.

This is the most common constraint type in practice. Projection is element-wise clipping, which is trivially SIMD-friendly.

Fields

lb: Array1<f32>

Lower bounds (element-wise)

ub: Array1<f32>

Upper bounds (element-wise)

Implementations

impl BoxConstraint

pub fn new(lb: Array1<f32>, ub: Array1<f32>) -> Result<Self, String>

Create a new box constraint.

Errors

Returns an error string if lb and ub have different lengths or if any lb[i] > ub[i].

Trait Implementations

impl Clone for BoxConstraint

fn clone(&self) -> BoxConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BoxConstraint

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

Formats the value using the given formatter.

impl FastConstraint for BoxConstraint

fn is_feasible(&self, x: &Array1<f32>) -> bool

Return true if point x satisfies this constraint

fn project(&self, x: &Array1<f32>) -> Array1<f32>

Project x onto the feasible set of this constraint. If x is already feasible, returns a clone of x.

fn violation(&self, x: &Array1<f32>) -> f32

Return the constraint violation (0 if feasible, > 0 otherwise). The violation is a non-negative scalar indicating how far x is from feasibility.