Kahan summation algorithm: Revision history

21 April 2025

• curprev 00:0400:04, 21 April 2025 Sufficient statistics talk contribs 27,516 bytes +28 add Category:Floating point undo

29 January 2025

• curprev 13:4813:48, 29 January 2025 97.102.205.224 talk 27,488 bytes −30 →Further enhancements: In Klein summation, move declarations of c and cc into the loop to make clear they're not loop-carried. The description of Neumaier's algorithm *really* needs to explain significance of the other difference, which is that c is not added to sum inside the loop, but only once at the end. Requires more thought than I have tine to give right now :-( undo

24 November 2024

• curprev 15:5515:55, 24 November 2024 181.42.49.35 talk 27,518 bytes −2 No edit summary undo

9 February 2024

• curprev 06:5806:58, 9 February 2024 WikiCleanerBot talk contribs m 27,520 bytes 0 v2.05b - Bot T20 CW#61 - Fix errors for CW project (Reference before punctuation) undo Tag: WPCleaner

7 February 2024

• curprev 13:0113:01, 7 February 2024 Jagulin talk contribs 27,520 bytes +39 →Worked example undo
• curprev 09:5109:51, 7 February 2024 Jagulin talk contribs 27,481 bytes +403 →Worked example: Rephrasing the intro to clarify and improving comments. undo

27 December 2023

• curprev 09:0809:08, 27 December 2023 Citation bot talk contribs 27,078 bytes −84 Removed proxy/dead URL that duplicated identifier. | Use this bot. Report bugs. | #UCB_CommandLine undo

30 November 2023

• curprev 12:0112:01, 30 November 2023 Citation bot talk contribs 27,162 bytes +17 Add: s2cid. | Use this bot. Report bugs. | Suggested by Headbomb | Linked from Wikipedia:WikiProject_Academic_Journals/Journals_cited_by_Wikipedia/Sandbox | #UCB_webform_linked 333/1304 undo

17 November 2023

• curprev 03:2503:25, 17 November 2023 Jsnx talk contribs 27,145 bytes −2 Fix type setting undo Tag: 2017 wikitext editor
• curprev 03:1303:13, 17 November 2023 Jsnx talk contribs 27,147 bytes −113 →The algorithm undo Tag: 2017 wikitext editor

25 October 2023

• curprev 05:1905:19, 25 October 2023 Citation bot talk contribs 27,260 bytes −1 Alter: title. | Use this bot. Report bugs. | #UCB_CommandLine undo

17 October 2023

• curprev 08:5708:57, 17 October 2023 Anomalocaris talk contribs m 27,261 bytes +74 escape pipes with &124 not with {{!}}, which for some reason causes lint errors inside {{Citation needed}}; improve <ref>s undo

7 October 2023

• curprev 19:1419:14, 7 October 2023 A Shortfall Of Gravitas talk contribs 27,187 bytes +445 →Alternatives: Fix dead link with archive link, update python link from activestate discussion to actual feature implementation in 3.12, update 3 other refs to include DOI and use modern formatting undo

4 October 2023

• curprev 10:5710:57, 4 October 2023 Vincent Lefèvre talk contribs m 26,742 bytes +4 →Support by libraries: language correction: it should be either "the Neumaier summation" or "Neumaier's summation". undo
• curprev 10:5310:53, 4 October 2023 Vincent Lefèvre talk contribs m 26,738 bytes 0 →Support by libraries: MOS:CITEPUNCT undo
• curprev 10:4610:46, 4 October 2023 Vincent Lefèvre talk contribs 26,738 bytes −126 →Support by libraries: Correction for Python's fsum: https://docs.python.org/3/library/math.html#math.fsum does not say that it is correctly rounded, just that it should be accurate (and "by tracking multiple intermediate partial sums" is too vague). It even says that the accuracy depends on the platform; thus it is not necessarily correctly rounded. undo
• curprev 10:3610:36, 4 October 2023 Vincent Lefèvre talk contribs m 26,864 bytes +2 →Support by libraries: standard term undo
• curprev 10:3410:34, 4 October 2023 Vincent Lefèvre talk contribs m 26,862 bytes +2 →Alternatives: standard term / consistency undo
• curprev 10:3010:30, 4 October 2023 Vincent Lefèvre talk contribs 26,860 bytes +227 →Worked example: + {{Citation needed}} about decimal vs binary undo
• curprev 10:2110:21, 4 October 2023 Vincent Lefèvre talk contribs m 26,633 bytes +2 →Worked example: typos undo

3 October 2023

• curprev 10:3610:36, 3 October 2023 Pepoluan talk contribs 26,631 bytes +201 →Support by libraries: Python 3.12 sum() uses Neumaier undo

24 August 2023

• curprev 03:3103:31, 24 August 2023 Cornmazes talk contribs 26,430 bytes +54 No edit summary undo Tags: Mobile edit Mobile web edit

24 July 2023

• curprev 03:3603:36, 24 July 2023 Citation bot talk contribs 26,376 bytes +30 Add: bibcode. | Use this bot. Report bugs. | Suggested by Headbomb | Linked from Wikipedia:WikiProject_Academic_Journals/Journals_cited_by_Wikipedia/Sandbox2 | #UCB_webform_linked 716/2384 undo

18 February 2023

• curprev 06:5506:55, 18 February 2023 Citation bot talk contribs 26,346 bytes +16 Add: s2cid. | Use this bot. Report bugs. | Suggested by Corvus florensis | #UCB_webform 3265/3500 undo

8 October 2022

• curprev 15:2515:25, 8 October 2022 Felix QW talk contribs m 26,330 bytes −4 delink undo Tag: 2017 wikitext editor

12 March 2022

• curprev 11:3211:32, 12 March 2022 2a02:6b8:b081:b538::1:22 talk 26,334 bytes 0 :( undo Tag: Manual revert
• curprev 11:3211:32, 12 March 2022 2a02:6b8:b081:b538::1:22 talk 26,334 bytes 0 :) undo Tag: Reverted
• curprev 11:3111:31, 12 March 2022 2a02:6b8:b081:b538::1:22 talk 26,334 bytes −5 refactor undo Tag: Reverted
• curprev 11:3111:31, 12 March 2022 2a02:6b8:b081:b538::1:22 talk 26,339 bytes +5 eblan? undo Tag: Reverted

7 February 2022

• curprev 14:2814:28, 7 February 2022 Kku talk contribs m 26,334 bytes +4 link floating-point arithmetic using Find link undo

31 January 2022

• curprev 08:4708:47, 31 January 2022 133.11.21.117 talk 26,330 bytes +169 be a little more cautious with some of the claims in the introduction. the algorithm is just extended precision arithmetic done by hand. undo

9 January 2022

• curprev 17:4317:43, 9 January 2022 589q talk contribs 26,161 bytes +15 No edit summary undo

22 December 2021

• curprev 22:3822:38, 22 December 2021 Vincent Lefèvre talk contribs 26,146 bytes +229 →Accuracy: + {{Confusing}} about the use of ε undo

21 December 2021

• curprev 21:5421:54, 21 December 2021 Vincent Lefèvre talk contribs 25,917 bytes +118 →Further enhancements: + note that Neumaier's enhancement is similar to the replacement of Fast2Sum by 2Sum in Kahan's algorithm rewritten with Fast2Sum (FYI, the difference is that 2Sum uses additional FP operations to avoid the test and conditional branches, which may be costly on modern processors due to the pipeline). undo
• curprev 21:4721:47, 21 December 2021 Vincent Lefèvre talk contribs m 25,799 bytes +1 punctuation undo
• curprev 21:4521:45, 21 December 2021 Vincent Lefèvre talk contribs 25,798 bytes +1,457 →The algorithm: + rewritten to use the Fast2Sum algorithm undo

21 November 2021

• curprev 11:1811:18, 21 November 2021 Citation bot talk contribs 24,341 bytes +17 Add: s2cid. | Use this bot. Report bugs. | Suggested by Graeme Bartlett | #UCB_toolbar undo

26 October 2021

• curprev 11:5011:50, 26 October 2021 JSory talk contribs 24,324 bytes −1 →Further enhancements undo
• curprev 11:4911:49, 26 October 2021 JSory talk contribs 24,325 bytes +20 →Further enhancements: Clarified the code undo

16 October 2021

• curprev 22:4622:46, 16 October 2021 Alexey Ismagilov talk contribs m 24,305 bytes +7 add </math> (fix previous correction) undo
• curprev 22:4222:42, 16 October 2021 Alexey Ismagilov talk contribs m 24,298 bytes +210 Use LaTeX for math undo

22 September 2021

• curprev 12:4312:43, 22 September 2021 PrimeHunter talk contribs m 24,088 bytes +2 →top: fix typo undo
• curprev 05:2105:21, 22 September 2021 Artoria2e5 talk contribs 24,086 bytes −9 No edit summary undo
• curprev 05:1805:18, 22 September 2021 Artoria2e5 talk contribs m 24,095 bytes +26 →Further enhancements undo
• curprev 05:1805:18, 22 September 2021 Artoria2e5 talk contribs 24,069 bytes +233 Explain the Babuška undo

24 May 2021

• curprev 04:0704:07, 24 May 2021 2602:61:711c:c702:58e6:bd35:a9a6:ccbb talk 23,836 bytes +534 →Possible invalidation by compiler optimization: use of volatile to inhibit unwanted optimization undo

25 January 2021

• curprev 02:5102:51, 25 January 2021 Graeme Bartlett talk contribs m 23,302 bytes −1 clean up, replaced:, typo(s) fixed: For example → For example, undo Tag: AWB

20 December 2020

• curprev 13:2213:22, 20 December 2020 Dante DDM talk contribs m 23,303 bytes +36 Declaring variables undo Tag: Visual edit

27 November 2020

• curprev 22:1022:10, 27 November 2020 WikiCleanerBot talk contribs m 23,267 bytes 0 v2.04b - Bot T20 CW#61 - Fix errors for CW project (Reference before punctuation) undo Tag: WPCleaner

26 November 2020

• curprev 15:1615:16, 26 November 2020 Frap talk contribs 23,267 bytes +12 MOS:ALGO undo