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From: David Abrahams (dave_at_[hidden])
Date: 2005-09-27 07:09:45

David Abrahams <dave_at_[hidden]> writes:

> "Paul A Bristow" <pbristow_at_[hidden]> writes:
>> The expense is the brain power required to produce a high quality
>> implementation which proved more than expected for TR1 functions.
>> IMO part of the problem is the unrealistic expectation of the
>> Standards WGs for an accuracy similar to that for most of the other
>> functions like sin, cos for which it IS feasible, albeit with care
>> and skill, to get within a bit (ulp) or few.
>> For some of the other functions, getting within a few decimal places
>> is challenging.
> What leads you to believe there is such an unrealistic expectation? I
> don't see any mention of accuracy in the proposed TR
> ( for
> reference).

Never mind; obviously I should read entire postings before replying to

Sorry :(

Dave Abrahams
Boost Consulting

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