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Variational may refer to:

  • Calculus of variations, a field of mathematical analysis that deals with maximizing or minimizing functionals
  • Variational method, a way of finding approximations to the lowest energy eigenstate or ground state in quantum physics
  • Variational Bayesian methods, a family of techniques for approximating integrals in Bayesian inference and machine learning
  • Variational properties, properties of an organism relating to the production of variation among its offspring in evolutionary biology
  • Variationist sociolinguistics or variational sociolinguistics, the study of variation in language use among speakers or groups of speakers

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