Lagrangian (disambiguation)
- Lagrangian (disambiguation)
The term Lagrangian refers to any of several mathematical concepts developed by Joseph Louis Lagrange:
* In physics, the Lagrangian is a function that characterizes the dynamics of a system.
* In optimization theory, the Lagrangian is used to solve constrained optimization problems; see Lagrange multipliers.
* In calculus of variations, the Lagrangian is a functional whose extrema are to be determined; see Calculus of variations.
* In continuum mechanics, Lagrangian coordinates are a way of describing the motions of particles of a solid or fluid
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