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RFC: use pairwise summation for sum, cumsum, and cumprod #4039

Merged
merged 3 commits into from
Aug 13, 2013
Merged

RFC: use pairwise summation for sum, cumsum, and cumprod #4039

merged 3 commits into from
Aug 13, 2013

Commits on Aug 13, 2013

  1. use pairwise summation for sum, cumsum, and cumprod

    @stevengj
    stevengj committed Aug 13, 2013
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  2. use pairwise summation for mean, var, varm; also fix bug in var for c… 

    …omplex arrays (should use absolute value and return a real number)
    @stevengj
    stevengj committed Aug 13, 2013
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  3. use pairwise reduction for sum(f, A) and prod(f, A) via new (non-expo… 

    …rted) mapreduce_associative
    @stevengj
    stevengj committed Aug 13, 2013
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