# User contributions

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- 15:12, 28 November 2009 (diff | hist) . . (+1) . . m Recursion (→Examples: -- funny whoever did that - finally got noticed)
- 18:25, 10 November 2008 (diff | hist) . . (+12) . . 1993 USAMO Problems/Problem 1 (→Solution)
- 18:24, 10 November 2008 (diff | hist) . . (+59) . . 1993 USAMO Problems/Problem 1 (→Solution)
- 18:06, 16 October 2008
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**(+1,759)** . . 2001 IMO Problems/Problem 4 - 15:33, 4 October 2008 (diff | hist) . . (0) . . m 1973 USAMO Problems/Problem 4 (→Solution)
- 11:42, 4 October 2008
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**(+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...) - 12:30, 30 September 2008
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**(+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</...) - 15:37, 27 September 2008
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**(+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...) - 17:59, 24 September 2008
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**(+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...) - 20:06, 11 September 2008
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**(+2,131)** . . 1987 IMO Problems/Problem 2 - 17:54, 9 September 2008
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**(+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,...) - 12:06, 6 September 2008
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**(+804)** . . 1961 IMO Problems/Problem 6 (→Solution) - 19:04, 31 August 2008
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**(+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...) - 17:26, 30 August 2008 (diff | hist) . . (+18) . . m 1991 IMO Problems/Problem 1
- 17:26, 30 August 2008
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**(+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...) - 15:28, 30 August 2008
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**(+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...) - 11:56, 30 August 2008
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**(+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...) - 19:49, 26 August 2008
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**(+1,179)** . . 2006 Romanian NMO Problems/Grade 8/Problem 4 (→Solution) (current) - 10:26, 25 August 2008
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**(+1,397)** . . N 1985 IMO Problems/Problem 4 (page/ problem/ solution) - 09:46, 25 August 2008
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**(+2,718)** . . N 1984 IMO Problems/Problem 4 (page/ problem/ solution) - 17:59, 21 August 2008
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**(+1,562)** . . N 1982 IMO Problems/Problem 4 (page/ problem/ solution) - 15:53, 20 August 2008
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**(+2,804)** . . N 1988 IMO Problems/Problem 1 (page, problem, solution) - 09:56, 20 August 2008 (diff | hist) . . (-25) . . m 1983 IMO Problems/Problem 1 (corrected mistake)
- 19:19, 19 August 2008
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**(+1,632)** . . N 1983 IMO Problems/Problem 1 (Created Page/ sorry for the bad formatting, not really familiar with it) - 13:18, 3 August 2008 (diff | hist) . . (+429) . . Binomial Theorem (→Generalization: Added Proof)
- 13:10, 3 August 2008 (diff | hist) . . (+24) . . m Polynomial (latex-ed)
- 19:06, 28 January 2007 (diff | hist) . . (+123) . . N Nonconstant
- 19:01, 28 January 2007 (diff | hist) . . (+105) . . m Constant (when discussing polynomials)
- 23:07, 16 December 2006 (diff | hist) . . (+194) . . Distance formula
- 23:04, 16 December 2006
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**(+588)** . . N Euclid's proof of the infinitude of primes - 11:33, 1 October 2006
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**(+1,136)** . . Vector (more work is needed) - 19:09, 28 August 2006
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**(+1,625)** . . N Hampshire College Summer Studies in Mathematics (New article) - 12:17, 24 August 2006 (diff | hist) . . (+85) . . User talk:Cosinator
- 10:05, 23 August 2006
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**(+1,212)** . . Set (Cardinality) - 09:25, 23 August 2006
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**(+936)** . . Set (Small revisions all over) - 08:44, 23 August 2006
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**(+930)** . . Harmonic series (Proof of harmonic series converging) - 08:23, 23 August 2006 (diff | hist) . . (0) . . Goldbach Conjecture (changed link to be active)
- 08:16, 23 August 2006 (diff | hist) . . (+208) . . N Perpendicular (new article)
- 09:28, 21 August 2006
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**(+630)** . . Riemann Hypothesis (equivalent statements of the Riemann Hypothesis) - 09:09, 21 August 2006 (diff | hist) . . (-2) . . User:Cosinator (current)
- 16:52, 29 June 2006 (diff | hist) . . (+22) . . m Polynomial (→A More Precise Definition: added abbreviation of degree:deg)
- 08:30, 29 June 2006 (diff | hist) . . (+109) . . m Perfect square (Sum of squares formula)
- 13:02, 28 June 2006
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**(+822)** . . N Riemann zeta function (New article) - 12:45, 28 June 2006 (diff | hist) . . (-157) . . Harmonic series (Big revision of article)
- 12:25, 28 June 2006 (diff | hist) . . (+93) . . m Talk:Harmonic series (current)
- 12:19, 28 June 2006 (diff | hist) . . (+293) . . m Talk:Harmonic series
- 12:05, 28 June 2006 (diff | hist) . . (+34) . . m Talk:Quadratic residues
- 10:29, 28 June 2006 (diff | hist) . . (+227) . . N User:Cosinator
- 10:05, 28 June 2006 (diff | hist) . . (0) . . m User:ComplexZeta (Changing so it would be active)
- 10:03, 28 June 2006 (diff | hist) . . (+226) . . m Talk:Quadratic residues

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