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Record 26 of 33
Environment parameters and basic functions for floating-point computation
Author and Affiliation:
Brown, W. S.(Bell Telephone Labs., Inc., Murray Hill, NJ, United States)
Feldman, S. I.(Bell Telephone Labs., Inc., Murray Hill, NJ, United States)
Abstract: A language-independent proposal for environment parameters and basic functions for floating-point computation is presented. Basic functions are proposed to analyze, synthesize, and scale floating-point numbers. The model provides a small set of parameters and a small set of axioms along with sharp measures of roundoff error. The parameters and functions can be used to write portable and robust codes that deal intimately with the floating-point representation. Subject to underflow and overflow constraints, a number can be scaled by a power of the floating-point radix inexpensively and without loss of precision. A specific representation for FORTRAN is included.
Publication Date: Oct 18, 1978
Document ID:
19790004548
(Acquired Nov 15, 1995)
Accession Number: 79N12719
Subject Category: COMPUTER PROGRAMMING AND SOFTWARE
Document Type: Conference Paper
Publication Information: JPL Conf. on the Programming Environ. for Develop. of Numerical Software; p 11-14
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Bell Telephone Labs., Inc.; Murray Hill, NJ, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: COMPUTATION; COMPUTER PROGRAMS; FLOATING POINT ARITHMETIC; FORTRAN; CODING; INDEPENDENT VARIABLES; MATHEMATICAL MODELS; NUMERICAL CONTROL
Imprint And Other Notes: In JPL Conf. on the Programming Environ. for Develop. of Numerical Software p 11-14 (SEE N79-12715 03-59)
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