left_vectors: Extract left singular vectors or left eigenvectors.

In eigencore: Certified Partial Eigenvalue and Singular Value Computation

Extract left singular vectors or left eigenvectors.

Description

For SVD results this returns the left singular vectors U. For nonsymmetric and dense general-pencil eigen results this returns left eigenvectors when the solver computed them (for example, the dense general-pencil eig_full() path, which computes left generalized eigenvectors satisfying ⁠w^H A = lambda w^H B⁠).

Usage

left_vectors(x, ...)

Arguments

x	An eigencore SVD or eigen result object.
...	Reserved for future methods.

Value

A matrix of left singular vectors or left eigenvectors, or NULL when the result does not contain a left-vector field.

eigencore documentation built on July 26, 2026, 1:06 a.m.