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mention #4039 in NEWS
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@stevengj
stevengj committed Aug 13, 2013
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Expand Up @@ -81,6 +81,8 @@ Library improvements

* Fast primality testing (da670c4).

* `sum` and `cumsum` now use pairwise summation for better accuracy (#4039).

* `isreadable`/`iswritable` functions added for more IO types (#3872).

* `combinations` now returns an iterator instead of a task (#3989)
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4 comments on commit de7bc3f

@StefanKarpinski
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I keep finding the term "pairwise summation" isn't sufficient to conjure up what this algorithm does in my mind. How about calling it "recursive summation" or "pairwise recursive summation"? I do realize that "pairwise summation" is the standard term.

@johnmyleswhite
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The term is a little obscure, but we should probably say "recursive pairwise summation" so that the 2-gram is preserved when people in the know go searching for it.

@StefanKarpinski
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+1 for "recursive pairwise summation"

@ViralBShah
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Pairwise summation, although sounds generic, does seem to be how it is referred to:

http://en.wikipedia.org/wiki/Pairwise_summation

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