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Bibliographic details for Sigma notation

Citation styles for Sigma notation

APA style

Sigma notation. (2021, September 17). Department of Mathematics at UTSA, . Retrieved 04:34, January 22, 2026 from https://mathresearch.utsa.edu/wiki/index.php?title=Sigma_notation&oldid=1141.

MLA style

"Sigma notation." Department of Mathematics at UTSA, . 17 Sep 2021, 07:41 UTC. 22 Jan 2026, 04:34 <https://mathresearch.utsa.edu/wiki/index.php?title=Sigma_notation&oldid=1141>.

MHRA style

Department of Mathematics at UTSA contributors, 'Sigma notation', Department of Mathematics at UTSA, , 17 September 2021, 07:41 UTC, <https://mathresearch.utsa.edu/wiki/index.php?title=Sigma_notation&oldid=1141> [accessed 22 January 2026]

Chicago style

Department of Mathematics at UTSA contributors, "Sigma notation," Department of Mathematics at UTSA, , https://mathresearch.utsa.edu/wiki/index.php?title=Sigma_notation&oldid=1141 (accessed January 22, 2026).

CBE/CSE style

Department of Mathematics at UTSA contributors. Sigma notation [Internet]. Department of Mathematics at UTSA, ; 2021 Sep 17, 07:41 UTC [cited 2026 Jan 22]. Available from: https://mathresearch.utsa.edu/wiki/index.php?title=Sigma_notation&oldid=1141.

Bluebook style

Sigma notation, https://mathresearch.utsa.edu/wiki/index.php?title=Sigma_notation&oldid=1141 (last visited January 22, 2026).

BibTeX entry

 @misc{ wiki:xxx,
   author = "Department of Mathematics at UTSA",
   title = "Sigma notation --- Department of Mathematics at UTSA{,} ",
   year = "2021",
   url = "https://mathresearch.utsa.edu/wiki/index.php?title=Sigma_notation&oldid=1141",
   note = "[Online; accessed 22-January-2026]"
 }

When using the LaTeX package url (\usepackage{url} somewhere in the preamble) which tends to give much more nicely formatted web addresses, the following may be preferred: 

 @misc{ wiki:xxx,
   author = "Department of Mathematics at UTSA",
   title = "Sigma notation --- Department of Mathematics at UTSA{,} ",
   year = "2021",
   url = "\url{https://mathresearch.utsa.edu/wiki/index.php?title=Sigma_notation&oldid=1141}",
   note = "[Online; accessed 22-January-2026]"
 }


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