Eigenvalue -- from Wolfram MathWorld
https://mathworld.wolfram.com/Eigenvalue.html17.12.2021 · Eigenvalue. Eigenvalues are a special set of scalars associated with a linear system of equations (i.e., a matrix equation) that are sometimes also known as characteristic roots, characteristic values (Hoffman and Kunze 1971), proper values, or latent roots (Marcus and Minc 1988, p. 144).. The determination of the eigenvalues and eigenvectors of a system is …
Eigenvalues and eigenvectors - Wikipedia
https://en.wikipedia.org/wiki/Eigenvalues_and_eigenvectorsIn linear algebra, an eigenvector or characteristic vector of a linear transformation is a nonzero vector that changes at most by a scalar factor when that linear transformation is applied to it. The corresponding eigenvalue, often denoted by , is the factor by which the eigenvector is scaled. Geometrically, an eigenvector, corresponding to a real nonzero eigenvalue, points in a direction in which it is stretchedby the transformation and the eigenvalue is the factor by which it is stretched…