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wu :: forums    riddles    putnam exam (pure math) (Moderators: william wu, Icarus, SMQ, Grimbal, towr, Eigenray) requires some formal math training to understand Pages: 1 ... 13 14 15 16  Start new topic    Subject Started by Replies Views Last post Constant Modulo N william wu 6 1125 Aug 29th, 2003, 12:21pm by DH inequality: a^4 + b^4 + c^4 william wu 10 8326 Aug 27th, 2003, 11:44am by TenaliRaman Coprimality of Two Randomly Chosen Integers william wu 2 936 Aug 22nd, 2003, 11:56am by TenaliRaman IMO 2003 problems are available anonymous 1 763 Aug 11th, 2003, 7:13pm by anonymous My thoughts on IMO 2003 / 6 anonymous 5 2103 Aug 1st, 2003, 2:33pm by Icarus Another inequality anonymous 1 815 Jun 24th, 2003, 2:05pm by towr ***Spoiler*** inequality anonymous 5 875 Jun 24th, 2003, 11:29am by towr inequality anonymous 6 555 Jun 23rd, 2003, 10:36am by fingasj USAMO 2003 problems are available anonymous 1 666 May 7th, 2003, 10:24pm by anonymous A field's underlying groups Pietro K.C. 1 635 Apr 25th, 2003, 1:23am by Eigenray How Many Triangles william wu 1 712 Apr 25th, 2003, 12:16am by Eigenray Sum the Divisors (9/13/2002) william wu 2 1885 Apr 24th, 2003, 10:55pm by Eigenray Gas Stations Pietro K.C. 4 2466 Apr 22nd, 2003, 4:56pm by Icarus Chords on the Unit Circle william wu 6 2338 Mar 26th, 2003, 7:06am by harpanet Arithmetic Progressions (9/13/2002) william wu 5 785 Feb 18th, 2003, 12:15am by anonymous Multiplicative function NickH 6 873 Feb 9th, 2003, 6:38pm by NickH Fourth Degree Polynomials Pietro K.C. 0 775 Nov 12th, 2002, 3:35pm by Pietro PRIME GCD Pietro K.C. 3 856 Nov 5th, 2002, 8:56am by Pietro Primes Pietro K.C. 3 759 Nov 3rd, 2002, 8:58pm by Icarus Intersection Pietro K.C. 5 741 Nov 3rd, 2002, 7:08pm by TimMann Triangular Numbers Pietro K.C. 6 938 Oct 16th, 2002, 12:32am by TimMann Integer Generation william wu 1 755 Oct 13th, 2002, 9:41am by Pietro Partitions Pietro K.C. 9 1303 Oct 9th, 2002, 11:13am by Pietro Nine Points on a Sphere James Fingas 0 4055 Oct 2nd, 2002, 6:46am by fingasj Chain of subsets tim 1 1224 Oct 1st, 2002, 9:33am by Pietro Derivative goes to zero Pietro K.C. 0 2887 Sep 29th, 2002, 10:43am by Pietro Wine and Water Pietro K.C. 6 1626 Sep 19th, 2002, 1:39pm by Pietro Sum the Number of Divisors (9/13/2002) william wu 4 3041 Sep 19th, 2002, 12:12pm by Yournamehere Expected Length of Projection On Plane (8/26/2002) william wu 6 3898 Sep 5th, 2002, 9:49pm by admin Intersecting Convex Hulls (9/3/2002) william wu 1 3144 Sep 5th, 2002, 4:54pm by Pietro Pages: 1 ... 13 14 15 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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