Euler characteristic: Revision history

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For any version listed below, click on its date to view it. For more help, see Help:Page history and Help:Edit summary. (cur) = difference from current version, (prev) = difference from preceding version, m = minor edit, → = section edit, ← = automatic edit summary

curprev 14:5314:53, 17 June 2024‎ BorishanGh talk contribs‎ m 29,638 bytes 0‎ →‎Connected sum: fixed minor formatting error undo Tag: Visual edit

curprev 21:2721:27, 7 March 2024‎ Druiffic talk contribs‎ 29,638 bytes 0‎ →‎Arbitrary dimensions: -- Letter mismatch. We're using k to index homology groups but n to index dimensions of objects. undo

curprev 14:4414:44, 22 August 2023‎ Citation bot talk contribs‎ 29,638 bytes +35‎ Add: s2cid, doi. | Use this bot. Report bugs. | Suggested by Abductive | #UCB_webform 79/3850 undo

curprev 07:0207:02, 27 June 2023‎ Rodw talk contribs‎ m 29,603 bytes +10‎ Disambiguating links to University of the Pacific (link changed to University of the Pacific, Stockton) using DisamAssist. undo

curprev 05:1505:15, 7 June 2023‎ David Eppstein talk contribs‎ 28,064 bytes 0‎ Undid revision 1158920497 by 108.41.98.105 (talk) was better before; split infinitives are normal and colloquial in English despite their nonexistence in certain Romance languages undo Tag: Undo
curprev 02:2802:28, 7 June 2023‎ 108.41.98.105 talk‎ 28,064 bytes 0‎ fixed split infinitive undo Tag: Reverted

curprev 19:2519:25, 24 May 2023‎ Mgnbar talk contribs‎ 28,064 bytes 0‎ Undid revision 1156799336 by 204.54.33.137 (talk); rv 1 good-faith edit; in this case the hyphen is wrong undo Tag: Undo
curprev 17:4317:43, 24 May 2023‎ 204.54.33.137 talk‎ 28,064 bytes 0‎ Added hyphen undo Tag: Reverted

curprev 02:4402:44, 16 March 2023‎ Tamfang talk contribs‎ 28,064 bytes +102‎ →‎Soccer ball undo

curprev 23:0323:03, 12 March 2023‎ Mgnbar talk contribs‎ 27,962 bytes 0‎ Undid revision 1144289960 by Az123az12 (talk); no, Euler char of Mobius is 0 undo Tag: Undo
curprev 22:2622:26, 12 March 2023‎ Az123az12 talk contribs‎ m 27,962 bytes 0‎ corrected the Euler characteristics of a Mobius strip undo Tag: Reverted

curprev 01:2601:26, 7 February 2023‎ David Eppstein talk contribs‎ 27,962 bytes −297‎ Undid revision 1137900286 by Cononsense (talk) zero usage of this term in scholarly publications. We can't just include every name that was used once as a neologism in some publication and then forgotten. undo Tag: Undo
curprev 00:2900:29, 7 February 2023‎ Cononsense talk contribs‎ 28,259 bytes +297‎ No edit summary undo Tags: Reverted 2017 wikitext editor

curprev 19:1819:18, 25 January 2023‎ 2600:1700:8070:8bf0:444:d1db:b2d7:6008 talk‎ 27,962 bytes +13‎ →‎Proof of Euler's formula: Changed "This" to "Each new diagonal" because original wording was vague and appeared the word "This" seemed to refer to the entire process of adding all diagonals in the step, which would not be strictly true in general. undo

curprev 00:4700:47, 8 January 2023‎ Michael Hardy talk contribs‎ 27,949 bytes +167‎ →‎Polyhedra undo
curprev 00:4500:45, 8 January 2023‎ Michael Hardy talk contribs‎ m 27,782 bytes +2‎ →‎Polyhedra undo

curprev 14:1814:18, 7 December 2022‎ Christian Lawson-Perfect talk contribs‎ m 27,780 bytes −2‎ Replaced the diagram showing a vertex, edge and face of a cube with a more accessible version: the highlights are bigger, and there's white space around them so they stand out even when the difference in colour can't be seen. undo

curprev 17:1117:11, 10 November 2022‎ Worst Username talk contribs‎ m 27,782 bytes +32‎ Added links undo Tags: Mobile edit Mobile app edit iOS app edit

curprev 22:5422:54, 6 October 2022‎ Cmglee talk contribs‎ 27,750 bytes +223‎ →‎Arbitrary dimensions: Right-align table undo

curprev 22:1322:13, 11 September 2022‎ SWinxy talk contribs‎ m 27,527 bytes +3‎ →‎Arbitrary dimensions: class="wikitable floatright" undo Tag: 2017 wikitext editor

curprev 07:1207:12, 15 July 2022‎ Citation bot talk contribs‎ 27,524 bytes +17‎ Add: s2cid. | Use this bot. Report bugs. | Suggested by Smasongarrison | Linked from User:Smasongarrison/sandbox | #UCB_webform_linked 360/2934 undo

curprev 06:4506:45, 28 May 2022‎ David Eppstein talk contribs‎ 27,507 bytes +8‎ Title was out of date — it's up to 21 proofs now (COI edit, but minor update to existing reference) undo

curprev 12:4612:46, 13 April 2022‎ VaudevillianScientist talk contribs‎ m 27,499 bytes +14‎ →‎External links undo Tag: 2017 wikitext editor

curprev 18:5718:57, 1 March 2022‎ InternetArchiveBot talk contribs‎ 27,485 bytes +129‎ Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.6) (Whoop whoop pull up - 9593 undo

curprev 19:2319:23, 8 November 2021‎ Citation bot talk contribs‎ 27,356 bytes +87‎ Alter: journal, url. URLs might have been anonymized. Add: doi, volume, series. | Use this bot. Report bugs. | Suggested by Whoop whoop pull up | #UCB_webform 1440/2182 undo

curprev 10:5910:59, 6 October 2021‎ 85.255.237.31 talk‎ 27,269 bytes +31‎ →‎Topological definition undo
curprev 10:5010:50, 6 October 2021‎ 85.255.237.31 talk‎ 27,238 bytes +16‎ →‎Topological definition undo

curprev 19:0419:04, 16 September 2021‎ Beland talk contribs‎ 27,222 bytes −56‎ →‎Surfaces: use each column only once, to make table more accessible to screen readers undo
curprev 19:0219:02, 16 September 2021‎ Beland talk contribs‎ 27,278 bytes −56‎ →‎Surfaces: streamline markup undo

curprev 18:0218:02, 9 September 2021‎ 164.52.242.130 talk‎ 27,334 bytes +28‎ →‎Generalizations: this is true in reduced homology undo

curprev 12:5512:55, 7 September 2021‎ Cmglee talk contribs‎ 27,306 bytes +165‎ →‎Arbitrary dimensions: Add Euler_characteristic_hypercube_simplex.svg undo

curprev 08:1908:19, 2 September 2021‎ Cmglee talk contribs‎ 27,141 bytes −11‎ →‎Arbitrary dimensions: Use table caption undo
curprev 08:1708:17, 2 September 2021‎ Cmglee talk contribs‎ 27,152 bytes +801‎ →‎Arbitrary dimensions: Add table of regular 4-polytopes undo

curprev 17:4117:41, 29 August 2021‎ Bekemm talk contribs‎ m 26,351 bytes −1‎ typo fix undo Tag: Visual edit

curprev 15:5915:59, 22 August 2021‎ 2003:c3:671c:ac00:9951:83f4:72e:d01a talk‎ 26,352 bytes +404‎ →‎Surfaces undo
curprev 15:2115:21, 22 August 2021‎ 2003:c3:671c:ac00:9951:83f4:72e:d01a talk‎ 25,948 bytes +58‎ →‎Surfaces undo

curprev 21:4421:44, 7 August 2021‎ 2003:c3:671c:ac00:345e:22e1:bea8:ce74 talk‎ 25,890 bytes +3‎ →‎Surfaces undo

curprev 18:0218:02, 5 August 2021‎ 108.17.122.23 talk‎ 25,887 bytes −22‎ →‎Generalizations: use nLab template for reference undo

curprev 14:5014:50, 30 July 2021‎ 2603:8081:1801:ba00:e594:8ff7:5364:2674 talk‎ 25,909 bytes +118‎ →‎Surfaces: added images for 3 spheres undo

curprev 05:5705:57, 28 February 2021‎ Imaginatorium talk contribs‎ 25,791 bytes −345‎ rv good faith; rm unmemorable trivia ("very fun" doesn't even show the signs) undo Tag: Undo
curprev 04:3504:35, 28 February 2021‎ Cmglee talk contribs‎ 26,136 bytes +345‎ →‎Polyhedra: Add mnemonics undo Tag: Reverted

curprev 20:5420:54, 26 February 2021‎ Kdkeller talk contribs‎ m 25,791 bytes −8‎ →‎Polyhedra undo
curprev 20:3620:36, 26 February 2021‎ Kdkeller talk contribs‎ 25,799 bytes +78‎ →‎Polyhedra: added picture with Vertex, edge and face of a cube undo

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