noun ei·gen·val·ue \ˈī-gən-ˌval-(ˌ)yü\

Definition of eigenvalue

  1. :  a scalar associated with a given linear transformation of a vector space and having the property that there is some nonzero vector which when multiplied by the scalar is equal to the vector obtained by letting the transformation operate on the vector; especially :  a root of the characteristic equation of a matrix

Origin and Etymology of eigenvalue

partial translation of German Eigenwert, from eigen own, peculiar + Wert value

First Known Use: 1927

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contemplative of or relative to the past

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