Indicator function: Revision history

8 May 2025

• curprev 13:4713:47, 8 May 2025 TTWIDEE talk contribs m 17,913 bytes +12 Fixed punctuation undo

24 April 2025

• curprev 19:4819:48, 24 April 2025 Malparti talk contribs 17,901 bytes −526 (1) fix confusion between f and f(x); replace blackboard bold I by blackboard bold 1 (much more common in my experience); rv personal spacing preferences of IP editor that make the code harder to read. undo

21 February 2025

• curprev 02:2202:22, 21 February 2025 Fgnievinski talk contribs 18,427 bytes −50 →Smoothness undo

16 February 2025

• curprev 16:1916:19, 16 February 2025 Shwobopho talk contribs m 18,477 bytes +67 Improved wording in Definition description undo

15 February 2025

• curprev 02:3102:31, 15 February 2025 12.75.128.5 talk 18,410 bytes +1,253 inserted additional notation; punctuation; layout; math typesetting undo

27 January 2025

• curprev 16:5416:54, 27 January 2025 SpiralSource talk contribs m 17,157 bytes +80 added subobject classifier to the "see also" list. undo Tag: Visual edit

19 January 2025

• curprev 20:5520:55, 19 January 2025 2601:205:4400:9090:1572:5f50:d2cb:22f2 talk 17,077 bytes −17 = vs. identically =, range --> codomain undo

28 November 2023

• curprev 19:5419:54, 28 November 2023 Hairy Dude talk contribs 17,094 bytes +16 display="block" undo Tags: Mobile edit Mobile web edit Advanced mobile edit

27 October 2023

• curprev 22:5722:57, 27 October 2023 Bernanke's Crossbow talk contribs m 17,078 bytes 0 →Smoothness: pipe trick-ish stuff undo
• curprev 22:5622:56, 27 October 2023 Bernanke's Crossbow talk contribs 17,078 bytes +93 →Smoothness: smooth over (heh) the boundary between added material and not undo
• curprev 21:5621:56, 27 October 2023 Bernanke's Crossbow talk contribs 16,985 bytes −19 →Smoothness: typo undo
• curprev 21:5521:55, 27 October 2023 Bernanke's Crossbow talk contribs 17,004 bytes +939 →Derivatives of the indicator function: Moving content from Characteristic function undo
• curprev 21:4921:49, 27 October 2023 Bernanke's Crossbow talk contribs 16,065 bytes −253 →Basic properties: Defn not necessary for article's intended audience undo

20 September 2023

• curprev 13:5113:51, 20 September 2023 Zfeinst talk contribs 16,318 bytes 0 Undid revision 1175758252 by 36.228.207.78 (talk) "\mathbf{1}" notation is used throughout the rest of this page undo Tag: Undo

17 September 2023

• curprev 06:5806:58, 17 September 2023 36.228.207.78 talk 16,318 bytes 0 No edit summary undo Tags: Reverted Visual edit

25 July 2023

• curprev 07:5507:55, 25 July 2023 Hellacioussatyr talk contribs 16,318 bytes +2 →Basic properties undo Tags: Mobile edit Mobile web edit Advanced mobile edit

24 May 2023

• curprev 07:3607:36, 24 May 2023 Roffaduft talk contribs m 16,316 bytes +24 →See also undo

11 April 2023

• curprev 02:5202:52, 11 April 2023 BBUCommander talk contribs m 16,292 bytes −3 using "one has" when the number 1 is frequently used is confusing undo

19 March 2023

• curprev 17:4917:49, 19 March 2023 SamL 199917 talk contribs m 16,295 bytes −1 fixed unicode character not showing undo

20 September 2022

• curprev 05:5805:58, 20 September 2022 Physikerwelt talk contribs 16,296 bytes +16 →Definition undo Tag: Visual edit

19 September 2022

• curprev 00:4900:49, 19 September 2022 Hellacioussatyr talk contribs 16,280 bytes −9 →Derivatives of the indicator function undo Tag: 2017 wikitext editor

14 August 2022

• curprev 05:4205:42, 14 August 2022 Hooman Mallahzadeh talk contribs m 16,289 bytes +1 →Basic properties undo

6 August 2022

• curprev 17:4417:44, 6 August 2022 2600:6c51:4540:2a2b:c22:749d:94b8:e13d talk 16,288 bytes −2 →Basic properties: Square brackets to curly braces for set notation undo Tag: Visual edit

5 May 2022

• curprev 00:0700:07, 5 May 2022 Damonturney talk contribs m 16,290 bytes 0 →Derivatives of the indicator function: fixed a < vs > mistake undo
• curprev 00:0600:06, 5 May 2022 Damonturney talk contribs m 16,290 bytes −41 →Derivatives of the indicator function: Improving the depth and clarity undo

5 April 2022

• curprev 15:1815:18, 5 April 2022 D.Lazard talk contribs 16,331 bytes 0 Reverted 5 edits by 95.24.203.18 (talk): Incoherent with the other sections undo Tags: Twinkle Undo
• curprev 14:5014:50, 5 April 2022 95.24.203.18 talk 16,331 bytes −4 →Definition undo Tags: Manual revert Reverted
• curprev 14:4914:49, 5 April 2022 95.24.203.18 talk 16,335 bytes +4 →Definition undo Tag: Reverted
• curprev 14:4814:48, 5 April 2022 95.24.203.18 talk 16,331 bytes −1 →Definition undo Tag: Reverted
• curprev 14:4714:47, 5 April 2022 95.24.203.18 talk 16,332 bytes 0 →Definition undo Tag: Reverted
• curprev 14:4614:46, 5 April 2022 95.24.203.18 talk 16,332 bytes +1 →Definition undo Tag: Reverted

4 April 2022

• curprev 09:4509:45, 4 April 2022 D.Lazard talk contribs 16,331 bytes −25 →top: clearer undo
• curprev 09:4109:41, 4 April 2022 D.Lazard talk contribs 16,356 bytes −101 →top: Less pedantry undo
• curprev 09:2709:27, 4 April 2022 D.Lazard talk contribs 16,457 bytes +22 Changing short description from "Type of mathematical function" to "Mathematical function characterizing set membership" (Shortdesc helper) undo
• curprev 09:2409:24, 4 April 2022 D.Lazard talk contribs 16,435 bytes +162 →top: relationship with Iverson bracket undo

9 February 2022

• curprev 15:0815:08, 9 February 2022 165.91.13.217 talk 16,273 bytes −1 A typo: denoted is misspelled as 'denoteed'. undo

23 January 2022

• curprev 03:3703:37, 23 January 2022 Sbb talk contribs 16,274 bytes +344 replaced colon-indented math with <math display=block> (:-indent wikitext produces invalid HTML5 <dd> markup without enclosing <dl>); {{math}}/<math> markup for inline math; moved punctuation inside preceding </math> to prevent wrapping of punctuation (by SublimeText.Mediawiker) undo

27 December 2021

• curprev 01:0901:09, 27 December 2021 David Eppstein talk contribs 15,930 bytes −281 chi notation; rm unsourced and dubious claim about computer science undo
• curprev 01:0601:06, 27 December 2021 David Eppstein talk contribs 16,211 bytes +57 ce lead; start less technical undo

6 December 2021

• curprev 18:2718:27, 6 December 2021 KD5TVI talk contribs 16,154 bytes −33 →Sources: Copy Template:Cite Q from Lotfi A. Zadeh. Add Template:Refbegin. undo

16 November 2021

• curprev 21:5321:53, 16 November 2021 Citation bot talk contribs 16,187 bytes −216 Add: s2cid, authors 1-1. Removed proxy/dead URL that duplicated identifier. Removed parameters. Some additions/deletions were parameter name changes. | Use this bot. Report bugs. | Suggested by Abductive | #UCB_toolbar undo

11 November 2021

• curprev 07:1107:11, 11 November 2021 Tea2min talk contribs 16,403 bytes −221 →Basic properties: Repair last edit: Remove fragment of "Explain" tag. I think the sentence "More generally, suppose A_1, ..., A_n is a collection of subsets of X." makes it clear that the collection of A_k's is indeed meant to be finite, with n the number of elements of this collection. undo

10 November 2021

• curprev 11:1811:18, 10 November 2021 176.122.109.237 talk 16,624 bytes −16 →Basic properties undo

15 October 2021

• curprev 16:1016:10, 15 October 2021 200.111.172.202 talk 16,640 bytes +38 →Mean, variance and covariance: add name of property undo

22 September 2021

• curprev 16:1816:18, 22 September 2021 Zfeinst talk contribs 16,602 bytes −163 Revert vandalism to version by Hellacioussatyr undo Tag: Manual revert
• curprev 03:0403:04, 22 September 2021 AnomieBOT talk contribs 16,765 bytes −11 Fixing reference errors undo Tag: Reverted

21 September 2021

• curprev 22:5322:53, 21 September 2021 209.236.20.145 talk 16,776 bytes +174 →Notes undo Tags: Reverted extraneous markup

2 August 2021

• curprev 06:0106:01, 2 August 2021 Hellacioussatyr talk contribs 16,602 bytes +1 →Basic properties undo Tags: Mobile edit Mobile web edit Advanced mobile edit
• curprev 06:0006:00, 2 August 2021 Hellacioussatyr talk contribs 16,601 bytes +5 →Derivatives of the indicator function undo Tags: Mobile edit Mobile web edit Advanced mobile edit

27 July 2021

• curprev 09:1509:15, 27 July 2021 Ravenpuff talk contribs 16,596 bytes +24 →top: ce undo