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GH-100425: Improve accuracy of builtin sum() for float inputs by rhettinger · Pull Request #100426 · python/cpython · GitHub
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GH-100425: Improve accuracy of builtin sum() for float inputs
- #100426
#100426
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rhettinger
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python:main
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rhettinger:compensated_sum
rhettinger/cpython:compensated_sum
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Dec 23, 2022
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GH-100425: Improve accuracy of builtin sum() for float inputs
#100426
rhettinger
merged 13 commits into
python:main
python/cpython:main
from
rhettinger:compensated_sum
rhettinger/cpython:compensated_sum
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Commits
Commits on Dec 22, 2022
Neumaier compensated summation
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Kahan summation
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Revert "Kahan summation"
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Restore the bogus sign tests
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Add tests and comments
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Add tests and docs
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Add blurb
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Remove out of date example for fsum()
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Update floating point tutorial
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Commits on Dec 23, 2022
Correct handling of overflowed or infinite sums
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Move local declarations inside the block where they are used.
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For consistent results, apply compensation on the slow path as well.
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Mark as an implementation detail.
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