Boost logo

Boost :

Subject: Re: [boost] accurate sum accumulator (kahan)
From: Tomas Puverle (tomas.puverle_at_[hidden])
Date: 2010-07-26 15:09:41

> PS As for naming, I'd vote for sum and accurate_sum (to keep backward

Please don't call them "accurate_sum" and "quick_sum" (as proposed by someone

There are several different types of "accurate sum" algorithms with different
runtime trade-offs.

'sum' in itself is as accurate as it gets if all the numbers are normalized
in some way. As this is frequently required for the overall computation, it
would be wasteful to compute the secondary accumulator. There are other
scenarios where a plain 'sum' is good enough.



Boost list run by bdawes at, gregod at, cpdaniel at, john at