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Most of the time floating point arithmetic does approximately the right thing. When adding sums or having products of numbers that greatly differ in magnitude, the floating point arithmetic may be incorrect. This package implements the Kahan (1965) sum <doi:10.1145/363707.363723>, Neumaier (1974) sum <doi:10.1002/zamm.19740540106>, pairwise-sum (adapted from 'NumPy', See Castaldo (2008) <doi:10.1137/070679946> for a discussion of accuracy), and arbitrary precision sum (adapted from the fsum in 'Python' ; Shewchuk (1997) <http://www.cs.berkeley.edu/~jrs/papers/robustr.pdf>). In addition, products are changed to long double precision for accuracy, or changed into a log-sum for accuracy.

copied from cf-staging / r-precisesums
Type Size Name Uploaded Downloads Labels
conda 50.3 kB | win-64/r-precisesums-0.7-r44h11b023d_0.conda  5 months and 14 days ago 178 main
conda 49.9 kB | win-64/r-precisesums-0.7-r43h11b023d_0.conda  5 months and 14 days ago 192 main
conda 46.5 kB | osx-64/r-precisesums-0.7-r43h199b6f9_0.conda  5 months and 14 days ago 163 main
conda 46.9 kB | osx-64/r-precisesums-0.7-r44h199b6f9_0.conda  5 months and 14 days ago 139 main
conda 46.7 kB | linux-64/r-precisesums-0.7-r43h2b5f3a1_0.conda  5 months and 14 days ago 618 main
conda 47.8 kB | linux-64/r-precisesums-0.7-r44h2b5f3a1_0.conda  5 months and 14 days ago 617 main

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