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Author Edgar, Albert D. ♦ Lee, Samuel C.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Logarithmic arithmetic ♦ Computational speed ♦ Number representation ♦ Microcomputer applications ♦ Computational accuracy
Abstract FOCUS is a number system and supporting computational algorithms especially useful for microcomputer control and other signal processing applications. FOCUS has the wide-ranging character of floating-point numbers with a uniformity of state distributions that give FOCUS better than a twofold accuracy advantage over an equal word length floating-point system. FOCUS computations are typically five times faster than single precision fixed-point or integer arithmetic for a mixture of operations, comparable in speed with hardware arithmetic for many applications. Algorithms for 8-bit and 16-bit implementations of FOCUS are included.
Description Affiliation: The Univ. of Oklahoma, Norman (Edgar, Albert D.; Lee, Samuel C.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 22
Issue Number 3
Page Count 12
Starting Page 166
Ending Page 177


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Source: ACM Digital Library