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Title: GH-100425: Improve accuracy of builtin sum() for float inputs by rhettinger · Pull Request #100426 · python/cpython · GitHub

Open Graph Title: GH-100425: Improve accuracy of builtin sum() for float inputs by rhettinger · Pull Request #100426 · python/cpython

X Title: GH-100425: Improve accuracy of builtin sum() for float inputs by rhettinger · Pull Request #100426 · python/cpython

Description: Issue: gh-100425

Open Graph Description: Issue: gh-100425

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GH-100425: Improve accuracy of builtin sum() for float inputs https://github.com/python/cpython/pull/100426/files#top
Show all changes 13 commits https://github.com/python/cpython/pull/100426/files
916ab7e Neumaier compensated summation rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/916ab7e12c5a32cdbc9003a066cc5383c9282564
787f2e5 Kahan summation rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/787f2e52b94f5501bf933a54f4720ef1c4784b00
bc308aa Revert "Kahan summation" rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/bc308aabca045f22e2607e2448b2c8608951d989
0c2ba04 Restore the bogus sign tests rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/0c2ba04d23057d4228ba8be9d31b5b884f74d0a1
89e46c8 Add tests and comments rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/89e46c83b5057ad367aa826c5040d752a3ba41d8
a9cb7d2 Add tests and docs rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/a9cb7d2ab06374c22de09b70cc4a1317a7b8c24d
839cc05 Add blurb rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/839cc05a2927256dee8fb1f4d4c92a421d150bfb
66db937 Remove out of date example for fsum() rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/66db9377f5c0317149b9c3c1bd31b68d449a92ae
af7613e Update floating point tutorial rhettinger Dec 22, 2022 https://github.com/python/cpython/pull/100426/commits/af7613ebcf1d118291320f07e9fab8100266c13c
4f4b731 Correct handling of overflowed or infinite sums rhettinger Dec 23, 2022 https://github.com/python/cpython/pull/100426/commits/4f4b73107da1a1509e5484512461f269ddc6711a
4da0b8f Move local declarations inside the block where they are used. rhettinger Dec 23, 2022 https://github.com/python/cpython/pull/100426/commits/4da0b8ff2e83ecea46bab85d56850851ea3c7eec
6c7894c For consistent results, apply compensation on the slow path as well. rhettinger Dec 23, 2022 https://github.com/python/cpython/pull/100426/commits/6c7894c82d2b2e562c2f72ef32745533917fbeee
3cf9536 Mark as an implementation detail. rhettinger Dec 23, 2022 https://github.com/python/cpython/pull/100426/commits/3cf9536ad7210bf5090b6e8e517130dd4c3d9a1a
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