From: Marat Khalili (0x8.0p15_at_[hidden])
Date: 2007-07-10 00:42:57
Thank you for response.
Lewis Hyatt wrote:
>> 6. Correlations are not considered; instead, worst case is always assumed.
>> For example:
>> (mx +- dx) + (my +- dy) gives ((mx + my) +- (dx + dy), not ((mx +
>> my) +- sqrt(dx*dx + dy*dy);
> It is hard for me to imagine a case when
> simply adding the errors like this is in any way meaningful.
Isn't it the case when numbers are fully correlated? This gives largest
error, this is the way I go. Well, _actual_ correlations are not
considered, user has to do it manually when needed.
With Best Regards,
Boost list run by bdawes at acm.org, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk