半径
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^ 黒木哲徳『なっとくする数学記号』講談社〈ブルーバックス〉、2021年、32頁。.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation.cs-ja1 q,.mw-parser-output .citation.cs-ja2 q{quotes:"「""」""『""』"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:#d33}.mw-parser-output .cs1-visible-error{color:#d33}.mw-parser-output .cs1-maint{display:none;color:#3a3;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}ISBN 9784065225509。
^ ⇒Definition of radius at mathwords.com. Accessed on 2009-08-08.
^ Barnett Rich, Christopher Thomas (2008), Schaum's Outline of Geometry, 4th edition, 326 pages. McGraw-Hill Professional. ISBN 0-07-154412-7, 978-0-07-154412-2. Online version accessed on 2009-08-08.
^ Jonathan L. Gross, Jay Yellen (2006), Graph theory and its applications. 2nd edition, 779 pages; CRC Press. ISBN 1-58488-505-X, 9781584885054. Online version accessed on 2009-08-08.
^ Brown, Richard G. (1997). Andrew M. Gleason. ed. Advanced Mathematics: Precalculus with Discrete Mathematics and Data Analysis. Evanston, Illinois: McDougal Littell. ISBN 0-395-77114-5
^ Krafft, C.; Volokitin, A. S. (1 January 2002). “Resonant electron beam interaction with several lower hybrid waves”. Physics of Plasmas 9 (6): 2786?2797. Bibcode: 2002PhPl....9.2786K. doi:10.1063/1.1465420. ISSN 1089-7674. ⇒オリジナルの14 April 2013時点におけるアーカイブ。. https://archive.is/20130414005110/http://pop.aip.org/resource/1/phpaen/v9/i6/p2786_s1?isAuthorized=no 2013年2月9日閲覧. "...in cylindrical coordinates (r,θ,z) ... and Z=vbzt is the longitudinal position..."
^ Alexander Groisman and Victor Steinberg (1997), Solitary Vortex Pairs in Viscoelastic Couette Flow. Physical Review Letters, volume 78, number 8, 1460?1463. doi:10.1103/PhysRevLett.78.1460 "[...]where r, θ, and z are cylindrical coordinates [...] as a function of axial position[...]"
関連項目.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:#f9f9f9;display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}ウィキデータには半径のプロパティである半径があります。（ 使用状況）
曲げ半径（英語版）
充填半径（英語版） in Riemannian geometry
収束半径
凸性半径（英語版）
曲率半径
断面回転半径
半直径（英語版）
外部リンク
Weisstein, Eric W. "Radius". mathworld.wolfram.com (英語).
radius in nLab
radius - PlanetMath.（英語）
Definition:Radius at ProofWiki
BSE-3 (2001), “Radius”, in Hazewinkel, Michiel, Encyclopedia of Mathematics, Springer, ISBN 978-1-55608-010-4, https://www.encyclopediaofmath.org/index.php?title=Radius
BSE-3 (2001), “Radius vector”, in Hazewinkel, Michiel, Encyclopedia of Mathematics, Springer, ISBN 978-1-55608-010-4, https://www.encyclopediaofmath.org/index.php?title=Radius_vector
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出典: フリー百科事典『ウィキペディア（Wikipedia）』
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