Enum StationarityClass 

pub enum StationarityClass {
    S,
    W,
    None,
    NotSearched,
}

The stationarity class a point was shown to satisfy; see certify.

Variants

S

Strong stationarity: a KKT point of the tightened NLP, B-stationary under MPCC-LICQ. The strongest first-order statement there is.

W

Weak stationarity only: multipliers reproduce ∇f, but every admissible choice puts a negative sign on some biactive pair, so the point admits a first-order descent direction along a branch.

None

No multipliers reproduce ∇f to the tolerance: not a stationary point of the model (or a pair is not complementary at all).

NotSearched

Not determined; nothing is claimed. The multipliers are not unique and the set is too large to search: more than MAX_DENSE_ENTRIES entries in the system, or more than MAX_SEARCHED_COLUMNS sign-constrained columns. Also reported if the sparse factorization fails outright.

Trait Implementations

impl Clone for StationarityClass

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StationarityClass

impl Debug for StationarityClass

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

Formats the value using the given formatter.

impl Eq for StationarityClass

impl PartialEq for StationarityClass

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for StationarityClass