invariant

[ in-vair-ee-uhnt ]

adjective

1. unvarying; invariable; constant.
2. Mathematics. normal ( def 5e ).

noun

1. Mathematics. a quantity or expression that is constant throughout a certain range of conditions.

invariant

/ ɪnˈvɛərɪənt /

noun

1. maths an entity, quantity, etc, that is unaltered by a particular transformation of coordinates

   a point in space, rather than its coordinates, is an invariant

adjective

1. maths (of a relationship or a property of a function, configuration, or equation) unaltered by a particular transformation of coordinates
2. a rare word for invariable

Derived Forms

• inˈvariance, noun

Other Words From

• in·vari·ant·ly adverb

Word History and Origins

Origin of invariant¹

First recorded in 1850–55; in- ³ + variant

Example Sentences

Essentially, an ensemble of neurons with mixed selectivity can accommodate many more dimensions of information about a task than a population of neurons with invariant functions.

From Science Daily

They focused on an invariant manifold, termed as the DA manifold, and conducted a stability analysis.

From Science Daily

"They have learned to be invariant to these particular dimensions in the stimulus space, and it's model-specific, so other models don't have those same invariances."

From Science Daily

We get universal power laws, and the system is scale invariant: if you take a photograph of the fluid flowing through the pores and blow it up, it looks like the original.

From Scientific American

In particular, both theories were scale invariant, meaning the physics of the systems the theories described didn’t change as the systems got larger or smaller.

From Scientific American