Linear vs Contravariant - What's the difference?

linear | contravariant |


As adjectives the difference between linear and contravariant

is that linear is having the form of a line; straight while contravariant is (category theory|of a functor) which reverses composition.

As a noun contravariant is

a bihomogeneous polynomial in dual variables of x'', ''y'', and the coefficients of some homogeneous form in ''x'', ''y , that is invariant under some group of linear transformations.

Other Comparisons: What's the difference?

linear

English

(wikipedia linear)

Adjective

(en adjective)
  • Having the form of a line; straight.
  • Of or relating to lines.
  • Made in a step-by-step, logical manner.
  • (botany, of leaves) Long and narrow, with nearly parallel sides.
  • (mathematics) Of or relating to a class of polynomial of the form y = ax + b .
  • (physics) A type of length measurement involving only one spatial dimension (as opposed to area or volume).
  • See also

    * quadratic * cubic * quartic * quintic * linear algebra * areal

    Anagrams

    * ----

    contravariant

    English

    Adjective

    (-)
  • (category theory, of a functor) which reverses composition
  • (computing, programming) Using or relating to contravariance.
  • Noun

    (en noun)
  • A bihomogeneous polynomial in dual variables of x'', ''y'', ... and the coefficients of some homogeneous form in ''x'', ''y , ... that is invariant under some group of linear transformations.