Astrophysics (index)

Eigenvalue

(λ)
(ratio between a vector and a linear transformation of that vector)

An Eigenvector is a non-zero vector which when multiplied by a specific square matrix (which performs a linear transformation on the vector), produces a vector that is the same as that eigenvector multiplied by a constant. That constant is called the matrix's Eigenvalue (λ). Calculation of an eigenvalue and eigenvector for a given matrix (transformation) is called Eigen-Decomposition.

Eigenvalues and eigenvectors have applications in geometric transformations, in quantum mechanics, in other physical phenomena.


(mathematics,physics)
http://en.wikipedia.org/wiki/Eigenvalues_and_eigenvectors
http://en.wiktionary.org/wiki/eigenvalue
http://dictionary.obspm.fr/index.php/index.php?showAll=1&formSearchTextfield=eigenvalue

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