Struct totsu_core::ConeRPos

pub struct ConeRPos<L: LinAlg> { /* private fields */ }

Nonnegative orthant cone

\[ \mathbb{R}_+^n = \mathbb{R}_+ \times \cdots \times \mathbb{R}_+ = \left\lbrace x \in \mathbb{R}^n \ \middle|\ x_i \ge 0,\ i=1,\ldots,n \right\rbrace \]

Implementations

impl<L: LinAlg> ConeRPos<L>

pub fn new() -> Self

Creates an instance.

Returns the ConeRPos instance.

Trait Implementations

impl<L: LinAlg> Cone<L> for ConeRPos<L>

fn proj(&mut self, _dual_cone: bool, x: &mut L::Sl) -> Result<(), ()>

Calculates \(\Pi_\mathcal{K}(x)\), that is euclidean projection of \(x\) onto the cone \(\mathcal{K}\).

fn product_group<G: Fn(&mut L::Sl) + Copy>(&self, _dp_tau: &mut L::Sl, _group: G)

Performs grouping for a diagonal preconditioning vector according to the cone \(\mathcal{K}\).