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About: Fixed-Point Number Representation

Module by: Douglas L. Jones

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Name: Fixed-Point Number Representation
ID: m11930
Language: English (en)
Summary: Specialized DSP hardware typically uses fixed-point number representations for lower cost and complexity and greater speed. Interpretation of two's-complement binary numbers as signed fractions between -1 and 1 allows integer arithmetic to be used for DSP computations, but introduces quantization and overflow errors.
Subject: Science and Technology
Keywords: fixed point, fractional number representation, overflow, quantization, roundoff error, truncation, two's complement
Document Type: -//CNX//DTD CNXML 0.5 plus MathML//EN
License: Creative Commons Attribution License (CC-BY 1.0)
Authors: Douglas L. Jones (dl-jones@uiuc.edu)
Copyright Holders: Douglas L. Jones (dl-jones@uiuc.edu)
Maintainers: Douglas L. Jones (dl-jones@uiuc.edu), Kyle Clarkson (kclarks@gmail.com)
Version: 1.2 (history)
Created: Jul 15, 2003 5:00 pm GMT-5
Revised: Dec 28, 2004 9:48 am US/Central

Version History

Version: 1.2 Dec 28, 2004 9:48 am US/Central by Douglas L. Jones
Changes: 
Edited text.
Added section headers.
Version: 1.1 May 11, 2004 2:40 pm GMT-5 by Kyle Clarkson
Changes: 
First Submission

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American Chemical Society (ACS) Style Guide:

Jones, D. Fixed-Point Number Representation, Connexions Web site. http://cnx.org/content/m11930/1.2/, Dec 28, 2004.

American Medical Assocation (AMA) Manual of Style:

Jones D. Fixed-Point Number Representation [Connexions Web site]. December 28, 2004. Available at: http://cnx.org/content/m11930/1.2/.

American Psychological Assocation (APA) Publication Manual:

Jones, D. (2004, December 28). Fixed-Point Number Representation. Retrieved from the Connexions Web site: http://cnx.org/content/m11930/1.2/

Chicago Manual of Style (Bibliography):

Jones, Douglas. "Fixed-Point Number Representation." Connexions. December 28, 2004. http://cnx.org/content/m11930/1.2/.

Chicago Manual of Style (Note):

Douglas Jones, "Fixed-Point Number Representation," Connexions, December 28, 2004, http://cnx.org/content/m11930/1.2/.

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

Jones, D. 2004. Fixed-Point Number Representation. Connexions, December 28, 2004. http://cnx.org/content/m11930/1.2/.

Modern Languages Association (MLA) Style Manual:

Jones, Douglas. Fixed-Point Number Representation. Connexions. 28 Dec. 2004 <http://cnx.org/content/m11930/1.2/>.