num::hessenberg_shifted_lu

Defined in header <linear/solvers/hessenberg_resolvent.hpp>

struct hessenberg_shifted_lu;

\(sI - A\) for one shift \(s\), factored as \(sI - H\) in Hessenberg coordinates.

Members

member	description
std::shared_ptr<const hessenberg_decomposition> decomp
cplx s
array<cplx> factor
array<idx> pivots
idx size() const noexcept