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 wu :: forums    riddles    putnam exam (pure math) (Moderators: towr, Eigenray, Grimbal, SMQ, Icarus, william wu)
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 Subject Started by Replies Views Last post An inequality acarchau 2 1051 Dec 15th, 2008, 3:30amby ThudnBlunder Sum of integers whose reciprocals sum to 1 Michael Dagg 4 7003 Dec 10th, 2008, 12:50amby towr Number of skew polyominos howard roark 9 4801 Dec 10th, 2008, 12:34amby towr A Beastly Number ThudnBlunder 14 1794 Dec 9th, 2008, 5:32pmby Eigenray tough number theory prob. « Pages 1 2 » LeoYard 26 2940 Nov 7th, 2008, 12:23pmby Michael Dagg help with a putnam question sarah9 2 4093 Nov 6th, 2008, 2:02pmby Eigenray Cubic Diophantine Equation Barukh 9 1454 Nov 4th, 2008, 11:11pmby Eigenray Dice sum divisibility Eigenray 6 2952 Oct 17th, 2008, 9:46amby william wu Proving Primality like Euler Barukh 5 1180 Sep 27th, 2008, 1:35amby Eigenray Can one connected set pass through another? ecoist 8 1067 Sep 26th, 2008, 3:13pmby Hippo Number problem « Pages 1 2 » NightBreeze 26 2608 Sep 25th, 2008, 1:56pmby NightBreeze for prime >3, sum_k=1^(p-1) 1 over k =0 mod p^2 4butipul2maro 2 1003 Sep 18th, 2008, 2:33pmby Eigenray Complete set wonderful 2 1191 Sep 16th, 2008, 4:09pmby wonderful (tanA)(tanB)(tanC) ThudnBlunder 4 9933 Aug 30th, 2008, 6:05amby l4z3r Integral Solutions l4z3r 6 1353 Aug 30th, 2008, 5:34amby l4z3r Limit of Integral ThudnBlunder 2 742 Aug 7th, 2008, 10:04amby Eigenray Limit of a Combinatorial Sum Michael Dagg 2 779 Aug 2nd, 2008, 8:38pmby Michael Dagg Inequality ThudnBlunder 2 675 Jul 13th, 2008, 3:02pmby Eigenray Cubic Congruences ThudnBlunder 3 692 Jul 12th, 2008, 2:37pmby Eigenray Interesting inequality wonderful 12 1215 Jul 4th, 2008, 2:26pmby wonderful Odd integration problem NightBreeze 2 798 Jun 24th, 2008, 10:03amby NightBreeze Prime power moments Aryabhatta 10 1008 Jun 20th, 2008, 2:38pmby Obob Barely compatible gatherings ecoist 4 1028 Jun 9th, 2008, 2:50pmby ecoist Proving Stokes' Theorem Marissa 3 4279 May 5th, 2008, 6:37pmby Eigenray SIGMAarctan(2/n^2) ThudnBlunder 7 1621 May 21st, 2008, 3:59amby william wu Sinc(x) ThudnBlunder 3 4592 May 20th, 2008, 1:44pmby william wu Common Eigenvector Condition william wu 9 5204 May 19th, 2008, 1:08pmby william wu Summation ThudnBlunder 10 1566 May 11th, 2008, 10:04amby towr matrix temporary 24 1891 Apr 24th, 2008, 7:42pmby Michael Dagg Help with an Arithmetic/algebra equation game uzo 2 3362 Apr 6th, 2008, 7:18amby towr
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