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What (who) is Lagrangian - definition
Lagrangian (field theory)
APPLICATION OF LAGRANGIAN MECHANICS TO FIELD THEORIES
Interaction Lagrangian; Lagrangian density; Lagrangian field theory
Lagrangian field theory is a formalism in classical field theory. It is the field-theoretic analogue of Lagrangian mechanics.
Averaged Lagrangian
![High-altitude [[wave cloud]] formed over the Hampton area at [[Burra, South Australia]] on 16 January 2007.](https://commons.wikimedia.org/wiki/Special:FilePath/Wave-06137.jpg?width=200 "High-altitude [[wave cloud]] formed over the Hampton area at [[Burra, South Australia]] on 16 January 2007.")
In continuum mechanics, Whitham's averaged Lagrangian method – or in short Whitham's method – is used to study the Lagrangian dynamics of slowly-varying wave trains in an inhomogeneous (moving) medium.
Lagrangian–Eulerian advection
In scientific visualization, Lagrangian–Eulerian advection is a technique mainly used for the visualization of unsteady flows. The computer graphics generated by the technique can help scientists visualize changes in velocity fields.
