Elementary matrix: Revision history

29 June 2024

• curprev 14:0414:04, 29 June 2024‎ Procyon117 talk contribs‎ m 8,818 bytes +13‎ v2.05 - Fix errors for CW project (Reference list missing - Spelling and typography) undo Tag: WPCleaner

27 June 2024

• curprev 12:2512:25, 27 June 2024‎ HigherCatLady talk contribs‎ m 8,805 bytes +303‎ No edit summary undo

22 May 2024

• curprev 13:5013:50, 22 May 2024‎ The Blue Rider talk contribs‎ m 8,502 bytes +24‎ added wikilink undo Tag: Visual edit

10 July 2023

• curprev 15:1415:14, 10 July 2023‎ Schmock talk contribs‎ 8,478 bytes +251‎ →‎Row-switching transformations: Added representation by row-addition and row-multiplication transformations undo

23 January 2023

• curprev 18:4618:46, 23 January 2023‎ OlliverWithDoubleL talk contribs‎ 8,227 bytes +187‎ short description, math formatting undo

8 December 2022

• curprev 02:1002:10, 8 December 2022‎ Winthrop23 talk contribs‎ 8,040 bytes +2‎ Undid revision 1126103586 by 111.243.125.142 (talk) undo Tag: Undo

7 December 2022

• curprev 14:5814:58, 7 December 2022‎ 111.243.125.142 talk‎ 8,038 bytes −2‎ →‎Elementary row operations undo Tag: Reverted
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17 October 2022

• curprev 08:4008:40, 17 October 2022‎ 175.159.124.149 talk‎ 8,042 bytes 0‎ →‎Row-addition transformations undo

24 August 2022

• curprev 17:2117:21, 24 August 2022‎ 156.142.249.10 talk‎ 8,042 bytes −51‎ →‎Row-addition transformations undo
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15 February 2022

• curprev 20:1520:15, 15 February 2022‎ 2a01:e0a:a12:7e10:6b5e:cf1:c838:7f2e talk‎ 8,093 bytes +8‎ →‎Row-switching transformations undo
• curprev 20:1420:14, 15 February 2022‎ 2a01:e0a:a12:7e10:6b5e:cf1:c838:7f2e talk‎ 8,085 bytes +250‎ →‎Row-addition transformations undo
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• curprev 20:0620:06, 15 February 2022‎ 2a01:e0a:a12:7e10:6b5e:cf1:c838:7f2e talk‎ 7,652 bytes +274‎ →‎Row-switching transformations undo

16 June 2021

• curprev 23:4523:45, 16 June 2021‎ Comp.arch talk contribs‎ m 7,378 bytes +2‎ No edit summary undo Tag: 2017 wikitext editor

7 May 2021

• curprev 15:5115:51, 7 May 2021‎ 2600:1700:fbe0:7e20:4820:6816:b19f:84de talk‎ 7,376 bytes 0‎ Using R for a general field is confusing since most people think of the real numbers in that case. undo

29 March 2021

• curprev 07:5407:54, 29 March 2021‎ Supyovalk talk contribs‎ m 7,376 bytes +20‎ No edit summary undo

27 February 2021

• curprev 23:1723:17, 27 February 2021‎ Obtuse Wombat talk contribs‎ 7,356 bytes 0‎ Change to use the more natural naming convention that elementary matrix notation "Lij(m)" means that m is in the ith row and jth column (rather than the jth row and ith column). See, for example, "Linear Algebra and Its Applications" by Gilbert Strang. undo
• curprev 23:1423:14, 27 February 2021‎ Obtuse Wombat talk contribs‎ m 7,356 bytes +221‎ Add reference to Gilbert Strang's "Introduction to Linear Algebra" undo

9 February 2021

• curprev 02:4802:48, 9 February 2021‎ Hellacioussatyr talk contribs‎ m 7,135 bytes +39‎ →‎Elementary row operations undo Tag: Visual edit

4 January 2021

• curprev 10:2710:27, 4 January 2021‎ Hellacioussatyr talk contribs‎ 7,096 bytes +32‎ →‎Row-switching transformations undo Tag: Visual edit

2 January 2021

• curprev 15:5315:53, 2 January 2021‎ Monkbot talk contribs‎ m 7,064 bytes +2‎ Task 18 (cosmetic): eval 6 templates: hyphenate params (2×); undo Tag: AWB

23 August 2020

• curprev 20:1020:10, 23 August 2020‎ Tony1123 talk contribs‎ m 7,062 bytes +6‎ The elementary matrices do not, in general, generated the general linear group over an arbitrary ring. But they always do when the general linear group is taken over a field. undo

4 July 2020

• curprev 23:1023:10, 4 July 2020‎ EmilyRiehl talk contribs‎ m 7,056 bytes +104‎ Added a comment that the fact that row operations are determined by left multiplication by an elementary matrix, namely the matrix obtained by applying that row operation to the identity, is an instance of the Yoneda lemma in category theory. undo

22 February 2020

• curprev 20:2520:25, 22 February 2020‎ Joel Brennan talk contribs‎ m 6,952 bytes +30‎ No edit summary undo

29 September 2019

• curprev 00:3900:39, 29 September 2019‎ Monkbot talk contribs‎ m 6,922 bytes −13‎ →‎References: Task 16: replaced (1×) / removed (0×) deprecated |dead-url= and |deadurl= with |url-status=; undo Tag: AWB

18 July 2019

• curprev 12:5012:50, 18 July 2019‎ Xifengdaocao talk contribs‎ 6,935 bytes +126‎ →‎Row-addition transformations undo

10 February 2019

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21 October 2018

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17 July 2018

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8 April 2018

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26 January 2018

• curprev 19:4519:45, 26 January 2018‎ Isomorphia talk contribs‎ m 6,265 bytes +2‎ →‎Elementary row operations undo
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7 December 2017

• curprev 12:4812:48, 7 December 2017‎ 123.243.136.68 talk‎ 6,256 bytes −92‎ No edit summary undo

19 September 2017

• curprev 05:3805:38, 19 September 2017‎ InternetArchiveBot talk contribs‎ 6,348 bytes +65‎ Rescuing 1 sources and tagging 0 as dead. #IABot (v1.5.2) undo

13 January 2017

• curprev 23:4123:41, 13 January 2017‎ Yahya Abdal-Aziz talk contribs‎ 6,283 bytes +39‎ replace heading "Operations" by more explicit and customary "Elementary row operations"; request cite for "ERO" abbreviation undo

22 December 2016

• curprev 09:3709:37, 22 December 2016‎ InternetArchiveBot talk contribs‎ 6,244 bytes +142‎ Rescuing 1 sources and tagging 0 as dead. #IABot (v1.2.7.1) undo

24 October 2016

• curprev 04:2104:21, 24 October 2016‎ Wcherowi talk contribs‎ 6,102 bytes +7‎ Reverted 1 edit by 65.92.192.155 (talk): The statement was not about the identity matrix, and was correct. (TW) undo

23 October 2016

• curprev 18:2718:27, 23 October 2016‎ 65.92.192.155 talk‎ 6,095 bytes −7‎ The determinant of the identity matrix is 1, not -1. In a 2x2 matrix, this can be proven as easily as calculating det = ad - bc = (1)(1) - (0)(0) = 1. This holds though for any sized identity matrix n x n undo