An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Lagrangian density
  چگالی ِ لاگرانژی  
cagâli-ye Lagranži
Fr.: densité lagrangienne  

A quantity, denoted Ld, describing a continuous system in the → Lagrangian formalism, and defined as the → Lagrangian per unit volume. It is related to the Lagrangian L by:
L = ∫∫∫Ld d3V.

Lagrangian density is often called Lagrangian when there is no ambiguity.

See also: → Lagrangian; → density.