Invariant
Invariant may have several meanings, among which are:
*
Invariant (computer science), an
expression whose value doesn't change during
program execution* In computer science, a
type in
overriding that is neither
covariant nor contravariant*
Invariant (mathematics), something unaltered by a
transformation, like for example: taking a
homotopy group functor on the
category of
topological spaces. Then,
homomeomorphic spaces have
isomorphic fundamental group. See
topological invariant.
*
Invariant (music)*
Invariant (physics), meaning that something does not change under a transformation, such as from one
reference frame to another
*
Invariant representation (cognitive science), the form or essence of something, an abstraction from particulars
*
The Invariant Society, the undergraduate mathematical society of Oxford University
