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A Comment on the Eispack Machine Epsilon Routine

Hopkins, Tim and Slater, John (1994) A Comment on the Eispack Machine Epsilon Routine. Technical report. University of Kent, Computing Laboratory, University of Kent, Canterbury, UK (KAR id:21181)


We analyze the algorithm used to generate the value for the machine epsilon in the Eispack suite of routines and show that it can fail on a binary floating-point system. The comments in the code describing the conditions under which this method will work are not restrictive enough and we provide a replacement set of assumptions. We conclude by suggesting how the algorithm may be modified to overcome most of the shortcomings.

Item Type: Reports and Papers (Technical report)
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Computing
Depositing User: Mark Wheadon
Date Deposited: 13 Aug 2009 18:26 UTC
Last Modified: 16 Nov 2021 09:59 UTC
Resource URI: (The current URI for this page, for reference purposes)

University of Kent Author Information

Hopkins, Tim.

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