28 November 2009

• 14:1214:12, 28 November 2009 diff hist +1 m Recursion →Examples: -- funny whoever did that - finally got noticed

10 November 2008

• 17:2517:25, 10 November 2008 diff hist +12 1993 USAMO Problems/Problem 1 →Solution
• 17:2417:24, 10 November 2008 diff hist +59 1993 USAMO Problems/Problem 1 →Solution

16 October 2008

• 17:0617:06, 16 October 2008 diff hist +1,759 2001 IMO Problems/Problem 4 No edit summary

4 October 2008

• 14:3314:33, 4 October 2008 diff hist 0 m 1973 USAMO Problems/Problem 4 →Solution
• 10:4210:42, 4 October 2008 diff hist +2,160 N 1994 IMO Problems/Problem 4 New page: Find all ordered pairs <math>(m,n)</math> where <math>m</math> and <math>n</math> are positive integers such that <math>\frac {n^3 + 1}{mn - 1}</math> is an integer. == Solution == Supp...

30 September 2008

• 11:3011:30, 30 September 2008 diff hist +4,378 N 1993 IMO Problems/Problem 4 New page: For three points <math>A,B,C</math> in the plane, we define <math>m(ABC)</math> to be the smallest length of the three heights of the triangle <math>ABC</math>, where in the case <math>A</...

27 September 2008

• 14:3714:37, 27 September 2008 diff hist +3,543 N 1991 IMO Problems/Problem 4 New page: Suppose <math>\,G\,</math> is a connected graph with <math>\,k\,</math> edges. Prove that it is possible to label the edges <math>1,2,\ldots ,k\,</math> in such a way that at each vertex w...

24 September 2008

• 16:5916:59, 24 September 2008 diff hist +2,964 N 1989 IMO Problems/Problem 2 New page: <math>ABC</math> is a triangle, the bisector of angle <math>A</math> meets the circumcircle of triangle <math>ABC</math> in <math>A_1</math>, points <math>B_1</math> and <math>C_1</math> a...

11 September 2008

• 19:0619:06, 11 September 2008 diff hist +2,131 1987 IMO Problems/Problem 2 No edit summary

9 September 2008

• 16:5416:54, 9 September 2008 diff hist +1,913 N 1986 IMO Problems/Problem 2 New page: Given a point <math>P_0</math> in the plane of the triangle <math>A_1A_2A_3</math>. Define <math>A_s=A_{s-3}</math> for all <math>s\ge4</math>. Construct a set of points <math>P_1,P_2,P_3,...

6 September 2008

• 11:0611:06, 6 September 2008 diff hist +804 1961 IMO Problems/Problem 6 →Solution

31 August 2008

• 18:0418:04, 31 August 2008 diff hist +1,722 N 1995 IMO Problems/Problem 1 New page: Let <math>A,B,C,D</math> be four distinct points on a line, in that order. The circles with diameters <math>AC</math> and <math>BD</math> intersect at <math>X</math> and <math>Y</math>. Th...

30 August 2008

• 16:2616:26, 30 August 2008 diff hist +18 m 1991 IMO Problems/Problem 1 No edit summary
• 16:2616:26, 30 August 2008 diff hist +1,515 N 1991 IMO Problems/Problem 1 New page: Given a triangle <math>ABC</math> let <math>I</math> be the center of its inscribed circle. The internal bisectors of the angles <math>A,B,C</math> meet the opposite sides in <math>A^\prim...
• 14:2814:28, 30 August 2008 diff hist +4,085 N 1989 IMO Problems/Problem 4 New page: Let <math>ABCD</math> be a convex quadrilateral such that the sides <math>AB,AD,BC</math> satisfy <math>AB=AD+BC</math>. There exists a point <math>P</math> inside the quadrilateral at a d...
• 10:5610:56, 30 August 2008 diff hist +2,849 N 1988 IMO Problems/Problem 4 New page: Show that the solution set of the inequality <math>\sum_{k=1}^{70}\frac{k}{x-k}\ge\frac{5}{4}</math> is a union of disjoint intervals, the sum of whose length is <math>1988</math>. Con...

26 August 2008

• 18:4918:49, 26 August 2008 diff hist +1,179 2006 Romanian NMO Problems/Grade 8/Problem 4 →Solution current

25 August 2008

• 09:2609:26, 25 August 2008 diff hist +1,397 N 1985 IMO Problems/Problem 4 page/ problem/ solution
• 08:4608:46, 25 August 2008 diff hist +2,718 N 1984 IMO Problems/Problem 4 page/ problem/ solution

21 August 2008

• 16:5916:59, 21 August 2008 diff hist +1,562 N 1982 IMO Problems/Problem 4 page/ problem/ solution

20 August 2008

• 14:5314:53, 20 August 2008 diff hist +2,804 N 1988 IMO Problems/Problem 1 page, problem, solution
• 08:5608:56, 20 August 2008 diff hist −25 m 1983 IMO Problems/Problem 1 corrected mistake

19 August 2008

• 18:1918:19, 19 August 2008 diff hist +1,632 N 1983 IMO Problems/Problem 1 Created Page/ sorry for the bad formatting, not really familiar with it

3 August 2008

• 12:1812:18, 3 August 2008 diff hist +429 Binomial Theorem →Generalization: Added Proof
• 12:1012:10, 3 August 2008 diff hist +24 m Polynomial latex-ed

28 January 2007

• 18:0618:06, 28 January 2007 diff hist +123 N Nonconstant No edit summary
• 18:0118:01, 28 January 2007 diff hist +105 m Constant when discussing polynomials

16 December 2006

• 22:0722:07, 16 December 2006 diff hist +194 Distance formula No edit summary

1 October 2006

• 10:3310:33, 1 October 2006 diff hist +1,136 Vector more work is needed

28 August 2006

• 18:0918:09, 28 August 2006 diff hist +1,625 N Hampshire College Summer Studies in Mathematics New article

24 August 2006

• 11:1711:17, 24 August 2006 diff hist +85 User talk:Cosinator No edit summary

23 August 2006

• 09:0509:05, 23 August 2006 diff hist +1,212 Set Cardinality
• 08:2508:25, 23 August 2006 diff hist +936 Set Small revisions all over
• 07:4407:44, 23 August 2006 diff hist +930 Harmonic series Proof of harmonic series converging
• 07:2307:23, 23 August 2006 diff hist 0 Goldbach Conjecture changed link to be active
• 07:1607:16, 23 August 2006 diff hist +208 N Perpendicular new article

21 August 2006

• 08:2808:28, 21 August 2006 diff hist +630 Riemann Hypothesis equivalent statements of the Riemann Hypothesis
• 08:0908:09, 21 August 2006 diff hist −2 User:Cosinator No edit summary current

29 June 2006

• 15:5215:52, 29 June 2006 diff hist +22 m Polynomial →A More Precise Definition: added abbreviation of degree:deg
• 07:3007:30, 29 June 2006 diff hist +109 m Perfect square Sum of squares formula

28 June 2006

• 12:0212:02, 28 June 2006 diff hist +822 N Riemann zeta function New article
• 11:4511:45, 28 June 2006 diff hist −157 Harmonic series Big revision of article
• 11:2511:25, 28 June 2006 diff hist +93 m Talk:Harmonic series No edit summary current
• 11:1911:19, 28 June 2006 diff hist +293 m Talk:Harmonic series No edit summary
• 11:0511:05, 28 June 2006 diff hist +34 m Talk:Quadratic residues No edit summary
• 09:2909:29, 28 June 2006 diff hist +227 N User:Cosinator No edit summary
• 09:0509:05, 28 June 2006 diff hist 0 m User:ComplexZeta Changing so it would be active
• 09:0309:03, 28 June 2006 diff hist +226 m Talk:Quadratic residues No edit summary
• 09:0009:00, 28 June 2006 diff hist +278 m Talk:Harmonic series No edit summary