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{{Wiktionarypar|radius}}
{{Wiktionary|Radius|radius}}
A '''[[radius]]''' is a straight line from the center to the boundary of an object or shape, especially a circle, sphere, or disk; or the length of such a line.
A '''[[radius]]''' is a straight line or distance from the center to the edge of a curve.


'''Radius''' may also refer to:
'''Radius''' may also refer to:


{{TOC right}}
* Any of several concepts closely related to the above, including:
==People==
** [[Radius of curvature]], a measure of how gently a curve bends
* [[Alexandra Radius]] (born 1942), Dutch ballerina
** [[Bend radius]] or [[minimum bend radius]], the minimum radius one can bend a pipe, tube, sheet, cable or hose without damage
* [[Justus Radius]] (1797–1884), German pathologist and ophthalmologist
** [[Radius (graph theory)]], the minimum distance from a graph's node to the node that is farthest from it
* [[Radius Prawiro]] (1928–2005), Indonesian economist and politician
** [[Radius of convergence]] (in calculus), the radius of the region where a complex power series converges
** [[Radius of gyration]], the root-mean-square distance from a set of points or masses to a given center
** The distance from a point to:
*** the center of a [[polar coordinate system]] in 2D
*** the center of a [[spherical coordinate system]] in 3D
*** the z-axis of a [[cylindrical coordinate system]] in 3D
* [[RADIUS]], a network authentication protocol
* [[Radius (bone)]], one of the two bones in a forearm
* [[Radius (Chrono Cross)]], a character from the role playing game Chrono Cross
* [[Radius (computer)]], a computer hardware firm
* [[Radius (comics)]], a fictional superhero in the Marvel Comics universe
* [[Radius (music ensemble)]], a musical ensemble specialising in the performance of contemporary classical music
* [[Radius (band)]], a band from Los Angeles, California


==Arts, entertainment, and media==
{{disambig}}

===Fictional entities===
* [[Radius (Chrono Cross)|Radius (''Chrono Cross'')]], a character in ''Chrono Cross''
* [[Radius (comics)]], a superhero in the Marvel Comics universe
* [[R.U.R.|Radius (''R.U.R.'')]], a character in Karel Čapek's science fiction play ''R.U.R.''

===Film===
* [[Radius (film)|''Radius'' (film)]], a 2017 Canadian film directed by Caroline Labrèche and Steeve Léonard

===Music===
* [[Radius (music ensemble)]], a London music ensemble founded by Tim Benjamin

==Companies==
* [[Radius Inc.]], a defunct computer hardware company
* [[Radius Intelligence]], a defunct enterprise software company
* [[Radius Payment Solutions]], a payment and fleet services technology and software company
* [[Radius Travel]], a travel management company

==Mathematics==
* [[Radius (graph theory)]], the minimum distance from a graph's node to the node that is farthest from it
* [[Radius of convergence]] (in calculus), the radius of the region where a complex power series converges
* [[Radius of curvature]], a measure of how gently a curve bends
* [[Radius of gyration]], the root-mean-square distance from a set of points or masses to a given center
* The radial coordinate in a
** [[Polar coordinate system]] (2D)
** [[Cylindrical coordinate system]] (3D)
** [[Spherical coordinate system]] (3D)
* The [[inradius]] or [[circumradius]] of a shape

==Science and technology==
* [[Radius (bone)]], one of the two bones in a forearm
* [[Bend radius]], the minimum radius to which one can bend a pipe, tube, sheet, cable, or hose without damage
* [[RADIUS]] (Remote Authentication Dial In User Service), a network authentication protocol
* [[Turning radius]], the minimum radius at which a vehicle can negotiate a turn


{{Disambiguation}}
[[ca:Radi]]
[[cv:Радиус (пĕлтерĕшĕсем)]]
[[da:Radius]]
[[de:Radius (Begriffsklärung)]]
[[fr:Radius]]
[[gl:Raio]]
[[he:רדיוס (פירושונים)]]
[[nl:Radius]]
[[ja:ラディウス]]
[[ru:Радиус (значения)]]
[[sk:Polomer]]

Latest revision as of 06:41, 13 March 2024

A radius is a straight line or distance from the center to the edge of a curve.

Radius may also refer to:

People

[edit]

Arts, entertainment, and media

[edit]

Fictional entities

[edit]

Film

[edit]
  • Radius (film), a 2017 Canadian film directed by Caroline Labrèche and Steeve Léonard

Music

[edit]

Companies

[edit]

Mathematics

[edit]

Science and technology

[edit]
  • Radius (bone), one of the two bones in a forearm
  • Bend radius, the minimum radius to which one can bend a pipe, tube, sheet, cable, or hose without damage
  • RADIUS (Remote Authentication Dial In User Service), a network authentication protocol
  • Turning radius, the minimum radius at which a vehicle can negotiate a turn