Ian Griffiths wrote:
As to the business issue - yes, I know this kind of thing crops up all the time. I've been involved in projects where a portion of a system was re-implemented, and run against historical data to validate that the new implementation is consistent with the old implementation. Whenever floating point is involved, inconsistencies usually arise, and a lot of them turn out to be bugs in the original code...
Everyone who has to deal with floating point should read David Goldberg's classic paper, "What Every Computer Scientist Should Know About Floating-Point Arithmetic", http://perso.ens-lyon.fr/jean-michel.muller/goldberg.pdf -- /George V. Reilly [EMAIL PROTECTED] http://www.georgevreilly.com/blog =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
