Enum PathOperator 

pub enum PathOperator {
    Preferred,
    Plain,
    Regularized,
}

Which operator a caller wants the walk’s Schur pin applied to.

The pin is the same in all three cases: solve K w - E du = r subject to Eᵀ w = 0. What varies is the K it rides on, and Preferred is the only one a solver should use – the other two exist so a test can name the operator it is measuring instead of inferring which one ran.

Variants

Preferred

The plain released system, falling back to the regularized one when it fails or does not hold the pins. What the walk uses.

Plain

The plain released system, and nothing else. Fails outright on a working set that leaves it singular.

Regularized

The released system with the pinned rows’ diagonals raised until it is invertible. Always answers where the plain one does, with the same answer, at the cost of a refactorization per solve.

Trait Implementations

impl Clone for PathOperator

fn clone(&self) -> PathOperator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PathOperator

impl Debug for PathOperator

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

Formats the value using the given formatter.

impl Eq for PathOperator

impl PartialEq for PathOperator

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PathOperator