Invariant

Look up invariance, invariant, or invariants in Wiktionary, the free dictionary.

Invariant and invariance may refer to:

Computer science

  • Invariant (computer science), an expression whose value doesn't change during program execution
    • Loop invariant, a property of a program loop that is true before (and after) each iteration
  • A data type in method overriding that is neither covariant nor contravariant
  • Class invariant, an invariant used to constrain objects of a class

Physics, mathematics, and statistics

  • Invariant (mathematics), a property of a mathematical object that is not changed by a specific operation or transformation
    • Rotational invariance, the property of function whose value does not change when arbitrary rotations are applied to its argument
    • Scale invariance, a property of objects or laws that do not change if scales of length, energy, or other variables, are multiplied by a common factor
    • Topological invariant
  • Invariant (physics), something does not change under a transformation, such as from one reference frame to another
  • Invariant estimator in statistics
  • Measurement invariance, a statistical property of measurement
  • Oxford University Invariant Society, an Oxford student mathematics club

Other uses

  • Invariant (linguistics), a word that does not undergo inflection
  • Invariant (music)
  • Writer invariant, property of a text which is similar in all texts of a given author, and different in texts of different authors
  • Invariance (magazine), a French Communist journal
  • Invariances, a 2001 book by philosopher Robert Nozick

See also

  • All pages with titles containing invariance
  • All pages with titles containing invariant
Topics referred to by the same term
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