Two's complement: 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 21:5421:54, 2 April 2025 MrSwedishMeatballs talk contribs 46,941 bytes +8 →From the ones' complement undo Tags: Mobile edit Mobile web edit Advanced mobile edit

curprev 13:2513:25, 21 March 2025 155.190.7.21 talk 46,933 bytes +39 No edit summary undo

curprev 11:0211:02, 14 March 2025 193.51.81.251 talk 46,894 bytes −1 MOS:NOTETHAT undo

curprev 13:3913:39, 10 March 2025 46.249.198.90 talk 46,895 bytes −7 No edit summary undo
curprev 13:3913:39, 10 March 2025 46.249.198.90 talk 46,902 bytes +7 No edit summary undo

curprev 07:5607:56, 1 March 2025 100.34.18.149 talk 46,895 bytes +3,074 →From the ones' complement: Added discussion of the equivalent alternative of subtracting 1 before inverting. I don't have reference sources for this, but it must be well known and the simple math proves itself. I hope someone will find and add a citation. I also added detail about 0, and a short final summary. undo

curprev 18:0118:01, 31 January 2025 31.178.211.0 talk 43,821 bytes −1 →Theory undo Tags: Mobile edit Mobile web edit
curprev 18:0018:00, 31 January 2025 31.178.211.0 talk 43,822 bytes +1 →Theory undo Tags: Mobile edit Mobile web edit
curprev 17:5917:59, 31 January 2025 31.178.211.0 talk 43,821 bytes −72 →Theory: The original framing was confusing and semantically vague. undo Tags: Mobile edit Mobile web edit
curprev 15:4615:46, 31 January 2025 31.178.211.0 talk 43,893 bytes +15 →Procedure undo Tags: Mobile edit Mobile web edit

curprev 01:5701:57, 27 January 2025 Davemck talk contribs m 43,878 bytes +20 Clean up duplicate template arguments using findargdups undo
curprev 00:5500:55, 27 January 2025 APenguinThatIsSilly talk contribs 43,858 bytes +16 →Example: fix errs with = undo
curprev 00:4000:40, 27 January 2025 Hairy Dude talk contribs 43,842 bytes +11 →Two's complement and 2-adic numbers: prevent "2-adic" from breaking across the line on narrow screens undo Tags: Mobile edit Mobile web edit Advanced mobile edit
curprev 00:3900:39, 27 January 2025 Hairy Dude talk contribs 43,831 bytes +138 minus signs (replace incorrectly used en dashes); display="block"; replace invalid style attributes with CSS; {{hatnote}}; rm inappropriate italics; make example code valid Pascal (as highlighted); consistently use spaced en dashes undo Tags: Mobile edit Mobile web edit Advanced mobile edit

curprev 11:1211:12, 7 January 2025 Acer11818 talk contribs m 43,693 bytes +3 Made it clearer undo Tags: Visual edit Mobile edit Mobile web edit

curprev 01:0201:02, 4 January 2025 Mindmatrix talk contribs 43,690 bytes +26 revert - rm promotional link undo Tag: Manual revert

curprev 21:5721:57, 3 January 2025 Potatoes271 talk contribs m 43,664 bytes −26 →External links: The link removed is very low quality (loading takes a long time, and the landing site is an unsecured HTTP not HTTPS). The new link while not offering direct multiplication, offers readers a way to convert between binary and 2's complement securely. undo Tags: Reverted Visual edit

curprev 14:3514:35, 13 December 2024 62.255.240.196 talk 43,690 bytes −4 No edit summary undo Tags: Manual revert Visual edit
curprev 14:3414:34, 13 December 2024 62.255.240.196 talk 43,694 bytes +4 →Subtraction undo Tags: Reverted Visual edit

curprev 04:5804:58, 2 November 2024 Citation bot talk contribs 43,690 bytes −2 Altered title. | Use this bot. Report bugs. | Suggested by Dominic3203 | Category:Binary arithmetic | #UCB_Category 64/100 undo

curprev 08:3108:31, 20 October 2024 172.116.36.225 talk 43,692 bytes −47 →Procedure: Removed unnecessary, unclear, and confusing comment. Instead of reverting this change, if you feel it should be added back, please include a demonstration of the calculation that is intended to be communicated. undo Tags: Mobile edit Mobile web edit

curprev 20:4820:48, 16 September 2024 Dhrm77 talk contribs 43,739 bytes 0 Undid revision 1246068884 by 2604:3D08:447C:E460:40D9:DA55:7C05:F831 (talk) "~6 + 1" means the binary complement of 6 (which is 9 or -7) plus one is 10 or -6. undo Tag: Undo
curprev 18:1718:17, 16 September 2024 2604:3d08:447c:e460:40d9:da55:7c05:f831 talk 43,739 bytes 0 changed -6 + 1, which didn't make any sense, to -8 + 2 undo Tag: Reverted

curprev 01:2401:24, 10 September 2024 129.22.1.28 talk 43,739 bytes 0 No edit summary undo Tag: Manual revert
curprev 01:2301:23, 10 September 2024 129.22.1.28 talk 43,739 bytes 0 No edit summary undo Tag: Reverted

curprev 03:5603:56, 17 August 2024 2600:8800:1680:17:1d56:2c9a:4bdb:b06f talk 43,739 bytes +4 →Procedure undo

curprev 17:4917:49, 3 August 2024 Polytope4d talk contribs 43,735 bytes +8 →Why it works undo Tags: Mobile edit Mobile web edit

curprev 14:1014:10, 9 July 2024 2409:40f2:4b:1469:116:18da:3068:ad3f talk 43,727 bytes 0 No edit summary undo Tag: Manual revert
curprev 14:0714:07, 9 July 2024 2409:40f2:4b:1469:116:18da:3068:ad3f talk 43,727 bytes 0 No edit summary undo Tag: Reverted

curprev 03:2703:27, 18 June 2024 37.78.19.84 talk 43,727 bytes −5 No edit summary undo

curprev 10:2610:26, 17 June 2024 Eric.freudenthal talk contribs 43,732 bytes +47 Drew reader's attention to the equivalence of flipping all bits and subtracting from -1. undo Tag: Visual edit

curprev 22:2822:28, 15 June 2024 Guy Harris talk contribs 43,685 bytes +4 Not just positive numbers, all non-negative numbers, including 0. undo
curprev 20:3720:37, 15 June 2024 Ruslik0 talk contribs m 43,681 bytes −7 Reverted edit by 112.215.230.27 (talk) to last version by 161.11.160.176 undo Tag: Rollback
curprev 19:3419:34, 15 June 2024 112.215.230.27 talk 43,688 bytes +7 333.111 undo Tags: Reverted Mobile edit Mobile web edit

curprev 13:0813:08, 5 June 2024 161.11.160.176 talk 43,681 bytes 0 the twos complement value of zero was wrong undo

curprev 16:1316:13, 3 June 2024 2607:fea8:3261:5300:28ff:8914:6c5c:dc92 talk 43,681 bytes +220 Calrify undo Tags: Mobile edit Mobile web edit
curprev 15:5915:59, 3 June 2024 2607:fea8:3261:5300:28ff:8914:6c5c:dc92 talk 43,461 bytes +60 →Procedure: Clarify undo Tags: Mobile edit Mobile web edit
curprev 15:2615:26, 3 June 2024 2607:fea8:3261:5300:28ff:8914:6c5c:dc92 talk 43,401 bytes −9 Removed confusing reference to "place" undo Tags: Mobile edit Mobile web edit

curprev 03:0203:02, 24 May 2024 173.2.181.25 talk 43,410 bytes +1 Undid revision 1225383054 by 173.2.181.25 (talk) undo Tag: Undo
curprev 03:0003:00, 24 May 2024 173.2.181.25 talk 43,409 bytes −1 No edit summary undo Tag: Reverted

curprev 17:0717:07, 20 May 2024 138.73.27.137 talk 43,410 bytes +1 minor - added comma for consistency undo

curprev 15:4115:41, 18 May 2024 Kline talk contribs m 43,409 bytes −20 Reverted 1 edit by 2603:8080:3500:FF00:1402:FF21:3EDA:A12C (talk) to last revision by Guy Harris undo Tags: Twinkle Undo
curprev 15:4115:41, 18 May 2024 2603:8080:3500:ff00:1402:ff21:3eda:a12c talk 43,429 bytes +20 I signed my name. undo Tags: Reverted Visual edit Mobile edit Mobile web edit

curprev 20:2920:29, 17 May 2024 Guy Harris talk contribs 43,409 bytes +95 →Procedure: Naked URLs are ugly; please drape them. undo
curprev 20:2320:23, 17 May 2024 Guy Harris talk contribs 43,314 bytes +158 Use the Wayback Machine for a now-dead link. undo
curprev 20:1020:10, 17 May 2024 Citation bot talk contribs 43,156 bytes +53 Add: isbn, publisher. | Use this bot. Report bugs. | Suggested by Guy Harris | #UCB_webform undo

curprev 10:0710:07, 22 April 2024 GuccizBud talk contribs m 43,103 bytes −33 →Theory: Copy edit ▸ MTCE tags ▸ Redaction of unnecessary year-old citation request. undo Tags: Mobile edit Mobile app edit Android app edit

curprev 01:1701:17, 19 April 2024 72.75.240.35 talk 43,136 bytes +164 Added an important caveat to which representation to choose. undo

curprev 07:3007:30, 9 April 2024 Guy Harris talk contribs 42,972 bytes +2 →Why it works: Add some commas to make that sentence clearer. undo
curprev 07:2907:29, 9 April 2024 Guy Harris talk contribs 42,970 bytes −6 Undid revision 1212416683 by Tanzhexuan (talk) - no, k isn't introduced until the second clause. undo Tag: Undo

2 April 2025

21 March 2025

14 March 2025

10 March 2025

1 March 2025

31 January 2025

27 January 2025

7 January 2025

4 January 2025

3 January 2025

13 December 2024

2 November 2024

20 October 2024

16 September 2024

10 September 2024

17 August 2024

3 August 2024

9 July 2024

18 June 2024

17 June 2024

15 June 2024

5 June 2024

3 June 2024

24 May 2024

20 May 2024

18 May 2024

17 May 2024

22 April 2024

19 April 2024

9 April 2024