eigenfunction
名词 n.
英文释义
名词 n.
-
A function ϕ such that, for a given linear operator D, Dϕ=λϕ for some scalar λ (called an eigenvalue).
— For many quantum-mechanical problems it is important to investigate the change of eigenvalues and eigenfunctions with the continuous change of one or more parameters. The case in which one knows the eigenvalues and eigenfunctions for two special values of the parameters, and is interested in the region in between is particularly interesting.
词形变化
词源
Etymology tree
Proto-Indo-European *h₂eyḱ-
Proto-Indo-European *h₂eh₂óyḱe
Proto-Germanic *aiganą
Proto-Germanic *aiganaz
Proto-West Germanic *aigan
Old High German eigan
Middle High German eigen
German eigenbor.
English eigen-
Old French fonction
Middle French functionbor.
English function
English eigenfunction
From eigen- + function.
Proto-Indo-European *h₂eyḱ-
Proto-Indo-European *h₂eh₂óyḱe
Proto-Germanic *aiganą
Proto-Germanic *aiganaz
Proto-West Germanic *aigan
Old High German eigan
Middle High German eigen
German eigenbor.
English eigen-
Old French fonction
Middle French functionbor.
English function
English eigenfunction
From eigen- + function.
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数据来源: Wiktionary