User contributions for Ddk001
2 November 2025
1 November 2025
- 20:4320:43, 1 November 2025 diff hist −14 m Hensel's Lemma →Intermediate current
- 20:4320:43, 1 November 2025 diff hist +1 m Problems Collection oops current
- 13:1013:10, 1 November 2025 diff hist +49 m User:Ddk001 →AIME current
- 13:0913:09, 1 November 2025 diff hist +12 m 2004 AIME II Problems/Problem 14 →Solution 4 (No calculation) current
- 13:0713:07, 1 November 2025 diff hist +1,581 2004 AIME II Problems/Problem 14 No edit summary
28 October 2025
- 21:1321:13, 28 October 2025 diff hist +46 User:Ddk001 →USAMO/USAJMO
- 21:0921:09, 28 October 2025 diff hist +735 1973 USAMO Problems/Problem 2 No edit summary current
5 July 2025
- 21:3321:33, 5 July 2025 diff hist +2,006 Problems Collection No edit summary
- 21:1321:13, 5 July 2025 diff hist +96 m Problems Collection →Solution 1 (Plain Algebra)
- 21:0321:03, 5 July 2025 diff hist 0 m User:Ddk001 →User Count
- 21:0221:02, 5 July 2025 diff hist +159 m User:Ddk001 →User Count
6 June 2025
- 20:0220:02, 6 June 2025 diff hist 0 User:Ddk001 →Contributions
- 19:5319:53, 6 June 2025 diff hist +1,664 Problems Collection No edit summary
- 19:3119:31, 6 June 2025 diff hist +53 m User:Ddk001 No edit summary
- 19:3019:30, 6 June 2025 diff hist +206 m Problems Collection →Putnam styled (Calculus version of AMC, AIME, and Olympiad)
- 19:2519:25, 6 June 2025 diff hist +1,863 2002 USAMO Problems/Problem 2 →Solution current
1 June 2025
- 20:3620:36, 1 June 2025 diff hist +2,165 Problems Collection No edit summary
28 May 2025
- 20:2720:27, 28 May 2025 diff hist +489 m Characteristic polynomial →Olympiad
- 20:2520:25, 28 May 2025 diff hist +23 m User:Ddk001 →Definitions
- 20:2320:23, 28 May 2025 diff hist +2 m Characteristic Equation Changed redirect target from Characteristic equation to Characteristic polynomial current Tag: Redirect target changed
- 20:2220:22, 28 May 2025 diff hist +446 Eigenvalue No edit summary current
- 20:2220:22, 28 May 2025 diff hist +4 m User:Ddk001 →Theorems
- 20:1820:18, 28 May 2025 diff hist +37 N Characteristic Equation Redirected page to Characteristic equation Tag: New redirect
- 20:1620:16, 28 May 2025 diff hist +94 m Diagonalizability →Uses of Diagonalization current
- 20:1420:14, 28 May 2025 diff hist +105 m Linear recurrence No edit summary current
- 20:1320:13, 28 May 2025 diff hist +144 m Linear algebra No edit summary current
- 20:1020:10, 28 May 2025 diff hist +1,245 Diagonalizability No edit summary
- 20:0020:00, 28 May 2025 diff hist +91 m User:Ddk001 →IMO
- 19:5719:57, 28 May 2025 diff hist +1,613 1976 IMO Problems/Problem 6 →Solution current
26 May 2025
- 20:2720:27, 26 May 2025 diff hist +3,682 N Diagonalizability Created page with "In Linear Algebra, '''Diagonalizability''' refers to the ability to diagonalize a matrix <math>A</math>, i.e. the ability to find an invertible matrix <math>P</math> and a..."
26 April 2025
- 22:0722:07, 26 April 2025 diff hist +107 User:Ddk001 →IMO
- 22:0622:06, 26 April 2025 diff hist +68 User:Ddk001 →IMO
- 22:0522:05, 26 April 2025 diff hist +1,467 2022 USAMO Problems/Problem 6 seriously, the solution had already been written ages ago, but usamo 2023 deleted it current
- 21:2721:27, 26 April 2025 diff hist +71 Reaper Archives No edit summary
- 21:2521:25, 26 April 2025 diff hist +14 Reaper Archives No edit summary
- 21:2221:22, 26 April 2025 diff hist +20 User:Ddk001 →Vandalism area
- 20:5520:55, 26 April 2025 diff hist +66 2025 AMC 10B Problems No edit summary
- 20:4820:48, 26 April 2025 diff hist +94 m Problems Collection →Problem 14
- 20:4720:47, 26 April 2025 diff hist +18 m 1972 IMO Problems/Problem 3 →Solution 3
- 20:4520:45, 26 April 2025 diff hist −19 m Problems Collection →Problem 14
- 20:4420:44, 26 April 2025 diff hist +20 m Problems Collection →Problem 14
- 20:4220:42, 26 April 2025 diff hist +18 m Problems Collection Undo revision 247432 by Ddk001 (talk) Tag: Undo
- 20:4020:40, 26 April 2025 diff hist −18 Problems Collection →Problem 14
- 20:3920:39, 26 April 2025 diff hist +1 m Problems Collection →Problem 14
- 20:3720:37, 26 April 2025 diff hist +2 Problems Collection →Problem 14
- 20:3720:37, 26 April 2025 diff hist +4 Problems Collection →Problem 14
- 20:3420:34, 26 April 2025 diff hist −1 Problems Collection →Problem 14
- 20:3220:32, 26 April 2025 diff hist −94 Problems Collection →Problem 14
- 20:3220:32, 26 April 2025 diff hist −93 Problems Collection →Problem 14
