Normal

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Normal may refer to:

Geography[edit]

People[edit]

Arts, entertainment, and media[edit]

Films[edit]

Music[edit]

Groups[edit]

Albums[edit]

Songs[edit]

Psychology, education and social sciences[edit]

Chemistry and technology[edit]

Mathematics[edit]

There are many unrelated notions of "normality" in mathematics.

Algebra and number theory[edit]

Analysis[edit]

  • Normal family, a pre-compact family of continuous functions
  • Normal number, a real number with a "uniform" distribution of digits
  • Normal number (computing), a floating-point number within the balanced range supported by a given format (unrelated to the previous notion)
  • Normal operator, an operator that commutes with its Hermitian adjoint
    • Normal matrix, a complex square matrix that meets certain conditions
  • Normal modes of vibration in an oscillating system

Geometry[edit]

  • Normal (geometry), a vector perpendicular to a surface (normal vector)
  • Normal bundle, a term related to the preceding concept
  • Normal cone, of a subscheme in algebraic geometry
  • Normal coordinates, in differential geometry, local coordinates obtained from the exponential map (Riemannian geometry)
  • Normal invariants, in geometric topology
  • Normal polytopes, in polyhedral geometry and computational commutative algebra
  • Normal space (or ) spaces, topological spaces characterized by separation of closed sets

Logic and foundations[edit]

Mathematical physics[edit]

Probability and statistics[edit]

  • Normal, the middle 95% of a bell curve (see 1.96)
  • Normal distribution, the Gaussian continuous probability distribution

Other mathematics[edit]

Transport[edit]

  • Metro Normal, a rapid transit railway station in the Mexico City Metro system