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wu :: forums    riddles    putnam exam (pure math) (Moderators: william wu, Icarus, towr, Eigenray, Grimbal, SMQ) requires some formal math training to understand Pages: 1 2 3 4 5 6  ...  16 Start new topic    Subject Started by Replies Views Last post Uncountable "chain" of subsets? Aryabhatta 9 4081 Apr 1st, 2008, 1:23am by Aryabhatta algebra judy 8 1164 Mar 28th, 2008, 9:11pm by Eigenray x^x=5 « Pages 1 2 » temporary 30 5653 Mar 25th, 2008, 6:24pm by temporary Fermat Primes and the number 7 Aryabhatta 3 3385 Mar 8th, 2008, 3:10pm by Eigenray Find the characteristic polynomial ecoist 5 1120 Feb 23rd, 2008, 7:24am by Icarus Set of 2n-1 integers Eigenray 10 8712 Feb 22nd, 2008, 3:38pm by Eigenray Factors of 7^(7^n) + 1 Johan_Gunardi 5 1558 Feb 21st, 2008, 7:45am by Eigenray Factoring large numbers is easy Eigenray 11 3000 Feb 20th, 2008, 9:49pm by Eigenray Calculus of Variations problem amangupta 8 793 Feb 13th, 2008, 3:16pm by Eigenray Extending x^x Icarus 5 991 Feb 10th, 2008, 1:29pm by Obob Polar Coordinates mikedagr8 5 2787 Feb 6th, 2008, 1:31am by mikedagr8 Statistics problem Benny 8 3204 Feb 5th, 2008, 10:56am by pex polynomial of degree n Benny 4 1148 Jan 31st, 2008, 9:06pm by Benny harmonic « Pages 1 2 3 » srn437 53 4691 Jan 27th, 2008, 7:31pm by temporary 3x^3+4y^3+5z^3=0 Eigenray 15 5230 Jan 27th, 2008, 2:39pm by balakrishnan solving X^3+8x^2 lilas224 12 2530 Jan 26th, 2008, 6:42am by ima1trkpny Summation of series Optimus Prime 2 2766 Jan 24th, 2008, 5:13pm by Icarus Number of balls in a bag archau 6 1289 Jan 24th, 2008, 12:16am by towr Calc 3 help Wardub 7 3175 Jan 10th, 2008, 11:29am by Icarus Generalized Wilson's and un-Wilson's Pietro K.C. 7 1292 Jan 9th, 2008, 7:17pm by Eigenray Thin sets for integer functions Pietro K.C. 3 1133 Jan 8th, 2008, 7:13am by Eigenray Right inverse but no left inverse in a ring ecoist 4 8328 Jan 7th, 2008, 12:31am by Eigenray Prove/Disprove a function is continuous archau 7 1480 Jan 6th, 2008, 6:22pm by Eigenray A recurrence formula with logloglog(n) solution. Gennadiy Korol 3 3938 Dec 3rd, 2007, 2:23pm by Gennadiy Korol Stuck on a radical TruthlessHero 7 1051 Dec 2nd, 2007, 7:28pm by Michael Dagg Ball-bearing on Sphere ThudnBlunder 1 3237 Nov 26th, 2007, 12:28pm by SMQ Sum Trignometric Series ThudnBlunder 1 2847 Nov 26th, 2007, 12:25pm by pex Arithmetic progressions and partitions Pietro K.C. 6 1837 Nov 25th, 2007, 2:17am by Hippo what exactly is this category for anyways? william wu 5 3859 Nov 23rd, 2007, 10:18am by ecoist Discrete Math Help « Pages 1 2 » Wardub 46 13557 Nov 19th, 2007, 12:07am by towr Pages: 1 2 3 4 5 6  ...  16 Start new topic  Normal Topic Hot Topic (More than 15 Replies) Very Hot Topic (More than 25 Replies) Locked Topic Sticky Topic Sticky Locked Topic Forum Jump: ----------------------------- riddles -----------------------------  - easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs => putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese

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