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About: DFT: Computational Complexity

Module by: Don Johnson. E-mail the author

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Name: DFT: Computational Complexity
ID: m0503
Language: English (en)
Summary: A brief explanation of calculation complexity and how the complexity of the discrete Fourier transform is order N squared.
Subject: Mathematics and Statistics
Keywords: computational complexity, discrete fourier transform
License: Creative Commons Attribution License CC-BY 3.0
Authors: Don Johnson (dhj@rice.edu)
Copyright Holders: Don Johnson (dhj@rice.edu)
Maintainers: Don Johnson (dhj@rice.edu), CJ Ganier (seejaie@rice.edu), John Cottrell (jac3@rice.edu)
Latest version: 2.12 (history)
First publication date: Jul 18, 2000 12:00 am -0500
Last revision to module: May 17, 2013 9:52 am -0500

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Version History

Version: 2.12 May 17, 2013 9:52 am -0500 by Don Johnson
Changes: 
Fixed a typo.
Version: 2.11 Apr 13, 2005 9:22 am -0500 by Charlet Reedstrom
Changes: 
update to cnxml-0.5, update mathml
Version: 2.10 Jul 27, 2003 3:59 pm -0500 by Don Johnson
Changes: 
Fixed intermodule link errors.
Version: 2.9 Nov 20, 2002 12:00 am -0600 by (Unknown)
Changes: 
Fixed typos.
Version: 2.8 Aug 13, 2002 12:00 am -0500 by (Unknown)
Changes: 
Upgraded to 0.4.
Version: 2.7 Aug 3, 2002 12:00 am -0500 by (Unknown)
Changes: 
fixed some typos.
Version: 2.6 Apr 19, 2002 12:00 am -0500 by (Unknown)
Changes: 
audited for mathml and cnxml errors
Version: 2.5 Sep 11, 2001 12:00 am -0500 by Brent Hendricks
Changes: 
Converted to CNXML 0.3.5
Version: 2.4 Aug 22, 2001 12:00 am -0500 by (Unknown)
Changes: 
Made O() a function
Version: 2.3 Jul 17, 2001 12:00 am -0500 by (Unknown)
Changes: 
added keywords
made John Cottrell a maintainer
fixed minor errors
Version: 2.2 Jun 5, 2001 12:00 am -0500 by (Unknown)
Changes: 
Corrected big O notation to be a presentation ML notation rather than a function in Content ML.  Also fixed some capitalization.
Version: 2.1 May 31, 2001 12:00 am -0500 by (Unknown)
Changes: 
Replaced some emphasis with term.
Version: 2.0 Oct 17, 2000 12:00 am -0500 by Brent Hendricks
Changes: 
Bumped version to 2.0

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The following citation styles comply with the attribution requirements for the license (CC-BY 3.0) of this work:

American Chemical Society (ACS) Style Guide:

Johnson, D. DFT: Computational Complexity, Connexions Web site. http://cnx.org/content/m0503/2.12/, May 17, 2013.

American Medical Assocation (AMA) Manual of Style:

Johnson D. DFT: Computational Complexity [Connexions Web site]. May 17, 2013. Available at: http://cnx.org/content/m0503/2.12/.

American Psychological Assocation (APA) Publication Manual:

Johnson, D. (2013, May 17). DFT: Computational Complexity. Retrieved from the Connexions Web site: http://cnx.org/content/m0503/2.12/

Chicago Manual of Style (Bibliography):

Johnson, Don. "DFT: Computational Complexity." Connexions. May 17, 2013. http://cnx.org/content/m0503/2.12/.

Chicago Manual of Style (Note):

Don Johnson, "DFT: Computational Complexity," Connexions, May 17, 2013, http://cnx.org/content/m0503/2.12/.

Chicago Manual of Style (Reference, in Author-Date style):

Johnson, D. 2013. DFT: Computational Complexity. Connexions, May 17, 2013. http://cnx.org/content/m0503/2.12/.

Modern Languages Association (MLA) Style Manual:

Johnson, Don. DFT: Computational Complexity. Connexions. 17 May 2013 <http://cnx.org/content/m0503/2.12/>.