Eigenvector

Noun
Prefix: eigen-

Pronunciation
/'ʌɪɡ(ə)nˌvɛktə/ listen

Synonym
Characteristic vector of a linear transformation

Meaning
An eigenvector is a nonzero vector that is changed at most by a scalar factor after the application of a linear transformation. It satisfies the formula Av = λv, where A is a matrixλ is a scalar (eigenvalue) and v is the eigenvector.

Example
This figure displays the matrix A acting on the vector x. The direction of the vector remains; thus, the x is the eigenvector of A.


Etymology
German eigen (own), from adoptions or partial translations of German compounds in Mathematics and Physics.

Sources
OED
Figure from WIKIPEDIA

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