Hessian matrix: Revision history

Filter revisionsshowhide

To date:

Tag filter:

Invert selection

External tools:

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 12:2612:26, 30 September 2025 AnomieBOT talk contribs m 22,304 bytes −12 Substing templates: {{Format ISBN}}. See User:AnomieBOT/docs/TemplateSubster for info. undo
curprev 12:1912:19, 30 September 2025 Monkbot talk contribs m 22,316 bytes +24 Monkbot/task 21: Replace page(s) with article-number; undo Tag: AWB

curprev 21:1921:19, 31 July 2025 Koah the Red Nosed Reindeer talk contribs m 22,292 bytes +4 Added internal link to "transpose" undo Tag: Visual edit

curprev 08:5608:56, 8 July 2025 EricTan23 talk contribs 22,288 bytes +28 Symmetry is not guaranteed generally. Otherwise the definition above does not make sense. 1297292137 by D.Lazard (talk) undo Tag: Undo

curprev 07:5407:54, 25 June 2025 D.Lazard talk contribs 22,260 bytes −28 Reverted 1 edit by EricTan23 (talk): Hessian matrix is symmetric except in pathological cases where it is not considered undo Tags: Twinkle Undo Reverted
curprev 05:1205:12, 25 June 2025 EricTan23 talk contribs 22,288 bytes +28 Generally speaking the hessian matrix may not be symmetric (it is actually JUST mentioned 3 lines above), so it make no sense to make this misleading simplification. The reader can decide this by themselves. 1290368275 by Sourish1997 (talk) undo Tags: Undo Reverted

curprev 09:0409:04, 24 June 2025 OAbot talk contribs m 22,260 bytes +24 Open access bot: url-access=subscription updated in citation with #oabot. undo

curprev 10:4010:40, 6 June 2025 51.6.149.11 talk 22,236 bytes +24 added missing common notation of Hessian: \nabla^2 undo

curprev 11:2011:20, 14 May 2025 Sourish1997 talk contribs m 22,212 bytes −28 The Hessian matrix is symmetric, so it is it's own transpose. So saying that the Hessian is the Jacobian of the gradient is the cleanest statement and avoids any needless transposes. undo Tag: Reverted

curprev 12:4012:40, 19 April 2025 Renamed user c51144e14015e584ff8728954eebc2d4 talk contribs 22,240 bytes +20 No edit summary undo

curprev 15:5015:50, 16 April 2025 Renamed user c51144e14015e584ff8728954eebc2d4 talk contribs 22,220 bytes −3 No edit summary undo

curprev 21:0421:04, 14 April 2025 JJMC89 bot III talk contribs m 22,223 bytes +14 Moving Category:Matrices to Category:Matrices (mathematics) per Wikipedia:Categories for discussion/Speedy undo

curprev 16:5416:54, 7 February 2025 D.Lazard talk contribs 22,209 bytes −195 Reverted 1 edit by 2603:8080:1D00:EB00:DC43:B67C:11D2:4DB1 (talk): WP:ELNO undo Tags: Twinkle Undo
curprev 16:4416:44, 7 February 2025 2603:8080:1d00:eb00:dc43:b67c:11d2:4db1 talk 22,404 bytes +195 →External links undo Tag: Reverted

curprev 17:1817:18, 22 December 2024 Pink Bee talk contribs m 22,209 bytes −15 not needed undo Tags: Mobile edit Mobile app edit iOS app edit App section source

curprev 08:5008:50, 26 November 2024 Perceptron599 talk contribs 22,224 bytes −21 Consistent transpose symbols; remove unnecessary formatting for single numbers undo Tags: Mobile edit Mobile web edit
curprev 08:3708:37, 26 November 2024 D.Lazard talk contribs 22,245 bytes −7 Reverted 1 edit by Perceptron599 (talk): Punctuation must be before </math> for avoiding erroneous line breaks undo Tags: Twinkle Undo
curprev 05:0205:02, 26 November 2024 Perceptron599 talk contribs 22,252 bytes +7 Improve math formatting undo Tags: Reverted Mobile edit Mobile web edit

curprev 18:5018:50, 15 November 2024 Jiri Lebl talk contribs 22,245 bytes +748 A better explanation of what complex Hessian is because what was here was not right (or really it was misleading). Also we don't use i in SCV for an index for obvious reasons. undo

curprev 00:2700:27, 26 October 2024 2a0a:ef40:e91:dd01:8897:6280:8090:557f talk 21,497 bytes +5 →References: Notes section is actually references undo Tags: Mobile edit Mobile web edit

curprev 18:2318:23, 27 December 2023 DMH223344 talk contribs 21,492 bytes +4 wikilink undo Tag: Visual edit

curprev 22:1222:12, 24 December 2023 ShelfSkewed talk contribs 21,488 bytes +17 (disambiguation) redirect for intentional link to dab page, per WP:INTDABLINK undo Tag: Disambiguation links added

curprev 18:3718:37, 6 December 2023 ClueBot NG talk contribs m 21,471 bytes 0 Reverting possible vandalism by 149.61.205.76 to version by OAbot. Report False Positive? Thanks, ClueBot NG. (4287619) (Bot) undo Tag: Rollback
curprev 18:3718:37, 6 December 2023 149.61.205.76 talk 21,471 bytes 0 No edit summary undo Tag: Reverted

curprev 12:2512:25, 8 November 2023 OAbot talk contribs m 21,471 bytes +21 Open access bot: arxiv updated in citation with #oabot. undo

curprev 07:4507:45, 3 October 2023 Rigmat talk contribs 21,450 bytes +91 No edit summary undo Tag: Disambiguation links added

curprev 09:0109:01, 27 September 2023 D.Lazard talk contribs 21,359 bytes −19 Reverted 1 edit by 2605:A601:A73D:C800:559F:F233:E0D3:77C0 (talk): Per MOS:REFER undo Tags: Twinkle Undo
curprev 04:1004:10, 27 September 2023 2605:a601:a73d:c800:559f:f233:e0d3:77c0 talk 21,378 bytes +19 gramer undo Tag: Reverted

curprev 16:3816:38, 8 June 2023 Mjaðveig talk contribs 21,359 bytes +36 Books by German authors sometimes use this term (even those published in English) undo

curprev 20:2520:25, 2 May 2023 Robinh talk contribs m 21,323 bytes +3 →Generalization to the complex case: colon not : undo

curprev 14:5614:56, 31 March 2023 Timlam2000 talk contribs m 21,320 bytes +19 →Definitions and properties: change to hessian is the transpose of the jacobian matrix because hessian matrix may not be symmetric undo Tag: Visual edit

curprev 15:0715:07, 22 March 2023 Nerd271 talk contribs 21,301 bytes +22 →See also: Portal for mathematics. undo Tag: 2017 wikitext editor

curprev 13:4813:48, 5 March 2023 D.Lazard talk contribs 21,279 bytes −217 Reverted 1 edit by AWSMA (talk): Unreliable source; seems to be self-promotionl; in any case there is no denominator here, and and the invoked convention does not exist in mathematics undo Tags: Twinkle Undo
curprev 07:3507:35, 5 March 2023 AWSMA talk contribs m 21,496 bytes +217 Undid revision 1142253839 by D.Lazard (talk). There are two layout conventions for gradient, Jacobian and Hessian which are the denominator (as in this page) and the numerator layout conventions. This is a well now concept in the science communities that use The Hessian matrix such as the machine learning community. undo Tags: Undo Reverted

curprev 10:2910:29, 1 March 2023 D.Lazard talk contribs 21,279 bytes −217 Reverted 1 edit by AWSMA (talk) undo Tags: Twinkle Undo Reverted
curprev 09:2909:29, 1 March 2023 AWSMA talk contribs m 21,496 bytes +217 Adding a description and a citation for the Hessian equation. undo Tags: Reverted Visual edit

curprev 05:5805:58, 31 January 2023 SZLiu talk contribs 21,279 bytes +454 →Other applications undo

curprev 10:4510:45, 27 January 2023 D.Lazard talk contribs 20,825 bytes −439 Reverted 2 edits by SZLiu (talk): Apparent conflict of interest (self promoting) undo Tags: Twinkle Undo
curprev 06:0006:00, 27 January 2023 SZLiu talk contribs 21,264 bytes −2 →Other applications undo Tag: Reverted
curprev 05:5105:51, 27 January 2023 SZLiu talk contribs 21,266 bytes +441 →Other applications undo Tag: Reverted

curprev 09:3009:30, 26 January 2023 D.Lazard talk contribs 20,825 bytes +24 Undid revision 1135682346 by 2601:200:C082:2EA0:1940:982D:4ADF:B58B (talk) and improving the phrasing undo
curprev 05:3705:37, 26 January 2023 2601:200:c082:2ea0:f956:e02:6231:f380 talk 20,801 bytes +2 →Generalizations to Riemannian manifolds undo
curprev 05:0405:04, 26 January 2023 2601:200:c082:2ea0:1940:982d:4adf:b58b talk 20,799 bytes −29 →Definitions and properties: Improved wording undo

curprev 10:2510:25, 22 November 2022 D.Lazard talk contribs 20,828 bytes −19 Reverted 2 edits by 147.96.128.83 (talk): Unneeded complication as the Hessian matrix equals its transpose undo Tags: Twinkle Undo
curprev 09:5409:54, 22 November 2022 147.96.128.83 talk 20,847 bytes +17 →Definitions and properties: Text didn't describe the formula correctly. undo Tags: Reverted Mobile edit Mobile web edit
curprev 09:5309:53, 22 November 2022 147.96.128.83 talk 20,830 bytes +2 →Definitions and properties: The Hessian here presented is actually the transpose of the jacobian of the gradient if we use the definition of Jacobian given in its page. undo Tags: Reverted Mobile edit Mobile web edit

curprev 23:5223:52, 25 October 2022 Ovinus talk contribs 20,828 bytes +17 more recognizable undo

curprev 02:4602:46, 23 October 2022 Citation bot talk contribs 20,811 bytes +49 Add: pmid, s2cid, authors 1-1. Removed parameters. Some additions/deletions were parameter name changes. | Use this bot. Report bugs. | Suggested by Whoop whoop pull up | #UCB_webform 641/3485 undo

curprev 14:1814:18, 1 October 2022 Ken.tsui.kt talk contribs m 20,762 bytes +6 No edit summary undo

curprev 19:3119:31, 27 August 2022 64.223.232.166 talk 20,756 bytes 0 →Critical points: -- Just correcting two spelling errors, substituting "principal" for "principle." undo

30 September 2025

31 July 2025

8 July 2025

25 June 2025

24 June 2025

6 June 2025

14 May 2025

19 April 2025

16 April 2025

14 April 2025

7 February 2025

22 December 2024

26 November 2024

15 November 2024

26 October 2024

27 December 2023

24 December 2023

6 December 2023

8 November 2023

3 October 2023

27 September 2023

8 June 2023

2 May 2023

31 March 2023

22 March 2023

5 March 2023

1 March 2023

31 January 2023

27 January 2023

26 January 2023

22 November 2022

25 October 2022

23 October 2022

1 October 2022

27 August 2022