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invariant
(redirected from Invariants)

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invariant [in′ver·ē·ənt]
(mathematics)
An elementxof a setEis said to be invariant with respect to a groupGof mappings acting onEifg(x) =xfor allginG.
A subsetFof a setEis said to be invariant with respect to a groupGof mappings acting onEifg(x) is inFfor allxinFand allginG.
For an algebraic equation, an expression involving the coefficients that remains unchanged under a rotation or translation of the coordinate axes in the cartesian space whose coordinates are the unknown quantities.
(programming)invariant - A rule, such as the ordering of an ordered list or heap, that applies throughout the life of a data structure or procedure. Each change to the data structure must maintain the correctness of the invariant.


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Our results indicate that the proposed field geometry of the abBA spectrometer will be substantially immune to most systematic effects and that transport calculations using adiabatic invariants agree well with solution of the full equations of motion.
Simulation of charged particle trajectories in the neutron decay ... by Calarco, John / Journal of Research of the National Institute of Standards and Technology
They search for proportions, which they call invariants, that remain constant within a group of species.
When to change sex: a handy guide from biologists by Milius, Susan / Science News
Pragmatically, they correspond to the computation of invariants, may they be object constancy, perceptual universals, cognitive invariants, identifications, namings, and so on.
Cybersemiotics and the problems of the information-processing ... by Brier, Soren / Library Trends
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