22 January 2009

• 14:4114:41, 22 January 2009 diff hist +669 N 1995 USAMO Problems/Problem 3 yay another problem

16 January 2009

• 11:4911:49, 16 January 2009 diff hist +741 LaTeX:Packages →Making Your Own

8 March 2007

• 17:4117:41, 8 March 2007 diff hist +320 1999 AIME Problems/Problem 2 No edit summary

1 December 2006

• 22:5622:56, 1 December 2006 diff hist +1,193 Bretschneider's formula No edit summary

22 August 2006

• 14:1414:14, 22 August 2006 diff hist +70 Base numbers →History
• 14:1214:12, 22 August 2006 diff hist −17 Base numbers No edit summary
• 14:1114:11, 22 August 2006 diff hist +266 N Alternating sum No edit summary
• 14:0814:08, 22 August 2006 diff hist +293 N Divisibility rules/Rule for 17 proof No edit summary
• 08:4308:43, 22 August 2006 diff hist +211 Phi No edit summary

20 August 2006

• 16:0116:01, 20 August 2006 diff hist −135 Divisibility rules →Divisibility Rule for 37
• 16:0116:01, 20 August 2006 diff hist +1,099 Divisibility rules →Divisibility Rule for 31
• 15:5315:53, 20 August 2006 diff hist +702 Divisibility rules →Divisibility Rule for 19
• 15:4715:47, 20 August 2006 diff hist +111 Divisibility rules →Divisibility Rule for 19
• 15:4715:47, 20 August 2006 diff hist +110 Divisibility rules →Divisibility Rule for 17
• 15:4215:42, 20 August 2006 diff hist +142 N Divisibility rules/Rule for 19 proof No edit summary
• 15:4015:40, 20 August 2006 diff hist +163 Divisibility rules →Divisibility Rule for 17
• 15:3615:36, 20 August 2006 diff hist 0 Divisibility rules →Divisibility Rule for 17
• 15:2315:23, 20 August 2006 diff hist +170 Divisibility rules →Divisibility Rule for 13

15 August 2006

• 11:0411:04, 15 August 2006 diff hist +431 Divisibility rules →Divisibility Rule for 7
• 10:5210:52, 15 August 2006 diff hist +445 Divisibility rules →Divisibility Rule for 13
• 10:4510:45, 15 August 2006 diff hist +289 Divisibility rules →Divisibility Rule for 11
• 10:3910:39, 15 August 2006 diff hist 0 Linear congruence →Example 1: How to solve
• 10:3610:36, 15 August 2006 diff hist +212 Linear congruence →Linear Congruences
• 10:3410:34, 15 August 2006 diff hist −1 Linear congruence No edit summary
• 10:3410:34, 15 August 2006 diff hist +184 N Linear congruence No edit summary

3 July 2006

• 03:1803:18, 3 July 2006 diff hist +3 Modular arithmetic/Introduction →Problem #1
• 03:1703:17, 3 July 2006 diff hist +629 Modular arithmetic/Introduction →Exponentiation
• 03:0103:01, 3 July 2006 diff hist +44 m Divisibility rules →Divisibility Rule for 3