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Want to learn how to tackle those tough MATHCOUNTS and AMC counting and probability problems? Check out Art of Problem Solving's Introduction to Counting & Probability by David Patrick.

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Forum		Topics	Posts	Last Post
Mathematics
	Middle School Classroom Math (Ages 9-13) Grade 5-8 classes, up through and including beginning algebra Moderators: isabella2296	1802	15296	How come ? Yesterday, at 6:13 pm batteredbutnotdefeated
	Middle School Contests (MATHCOUNTS, AMC 8, MOEMS, Ages 10-13) For discussion of math competitions in grades 5-8. Moderators: AIME15, frost13, isabella2296, LadyKn1ght, nebula42, rcv, solafidefarms	7759	106991	Discuss the 2009 AMC 8... Yesterday, at 8:15 pm bull98
	High School Basics (Ages 12-16) Grades 9-11. Classes: Algebra 1, algebra 2, geometry. American contests: AMC 10, first 2/3 of AMC 12. Moderators: High School Basics Moderators	10868	69557	Set Theory Today, at 1:33 am yshridhar
	High School Intermediate Topics (Ages 13+) Grades 9+. Classes: Precalculus/trigonometry. Contests: AMC 12, AIME, ARML, Mandelbrot, etc. Moderators: Intermediate Topics Moderators	16726	98943	Cyclic Quadrilateral P... Yesterday, at 9:29 pm NuncChaos
	High School Pre-Olympiad (Ages 14+) Grades 10+. Proof and short-answer problems like those for beginning training for national high school olympiads. Moderators: Pre-Olympiad Moderators	13257	65687	e^pi>pi^e Today, at 12:45 am Shanku
	Calculus Computations and Tutorials Ask questions about calculus problems in this forum.	This link has been visited 33952 times since Sun Jan 09, 2005 12:46 pm
	High School Olympiads National and International High School Olympiad Discussions	This link has been visited 8657 times since Tue Jun 02, 2009 11:41 am
	Collegiate Topics Topics in Collegiate Mathematics	This link has been visited 4699 times since Tue Jun 02, 2009 11:39 am
High School Contests & Programs
	American Mathematics Competitions For discussion of the AMC, AIME, and USAMO contests. Moderators: djshowdown2, krustyteklown, nealth, Silverfalcon, worthawholebean	4210	55662	Accounting Homework, M... Today, at 1:08 am Sunil Kumar
	USA Mathematical Talent Search The USAMTS is a free mathematics contest for US students. Ask for more information inside this forum. Moderators: tetrahedr0n	943	8427	Round 2 Difficulty Sat Nov 28, 2009 5:34 pm 123456789
	Other US Contests & Programs Other US contests, Westinghouse, Intel, Summer programs, etc. Moderators: mysmartmouth Sub-forums: Middle School Tournaments, ARML, AwesomeMath, Caltech Harvey Mudd Math Competition, HCSSiM, HiMCM & MCM, HMMT, Honors Summer Math Camp, Mandelbrot, Math Prize for Girls, mathleague.org (GPML, etc.), Mathcamp, MathPath, MathZoom, National Assessment & Testing, NIMO, Princeton Math Competition, Rocket City Math League, The iTest	1972	31389	Mock MathCounts Test T... Yesterday, at 8:25 pm AIME15
	Other Problem Solving Topics Discuss resources, teaching methods, current events in math, and other topics. Moderators: Peter Sub-forums: Mathematical Books and Journals, Puzzles & Brainteasers, Math & Strategy Games, Problems From the Book	3118	28069	3.12 Yesterday, at 2:59 pm Albanian Eagle
	International Contests & Programs Contests and programs around the world. Moderators: billzhao, orl	129	710	CMO Score Mon Nov 23, 2009 6:23 pm SnowEverywhere
Olympiad Section
	Algebra High-school Algebra. For College Algebra (groups, rings, matrices, etc.), please use the Superior Algebra forums. Moderators: High School Olympiad Moderators Sub-forums: Algebra Unsolved Problems, Algebra Proposed & Own Problems, Algebra Open Questions, Algebra Solved Problems, Algebra Theorems and Formulas	11096	42581	A functional inequation Today, at 1:36 am marin.bancos
	Combinatorics Moderators: High School Olympiad Moderators, darij grinberg, freemind, Megus, N.T.TUAN, orl, pbornsztein Sub-forums: Combinatorics Unsolved Problems, Combinatorics Proposed & Own Problems, Combinatorics Open Questions, Combinatorics Solved Problems, Combinatorics Theorems and Formulas	6600	24035	Alternating sequences Today, at 1:30 am pleurestique
	Geometry Moderators: High School Olympiad Moderators, darij grinberg, N.T.TUAN, orl, pbornsztein, pohoatza, yetti Sub-forums: Geometry Unsolved Problems, Geometry Proposed & Own Problems, Geometry Open Questions, Geometry Solved Problems, Geometry Theorems and Formulas	12255	45440	orthocenter problem Today, at 12:33 am Johan Gunardi
	Inequalities Moderators: High School Olympiad Moderators, Arne, blahblahblah, Cezar Lupu, darij grinberg, harazi, Megus, N.T.TUAN, orl, pbornsztein, pvthuan Sub-forums: Inequalities Unsolved Problems, Inequalities Proposed & Own Problems, Inequalities Open Questions, Inequalities Solved Problems, Inequalities Theorems and Formulas	16252	80105	Inequality in acute-an... Today, at 1:16 am Mateescu Constantin
	Number Theory Moderators: High School Olympiad Moderators, amfulger, Arne, darij grinberg, freemind, harazi, Megus, N.T.TUAN, orl, pbornsztein, ZetaX Sub-forums: PEN, Number Theory Unsolved Problems, Number Theory Proposed & Own Problems, Number Theory Open Questions, Number Theory Solved Problems, Number Theory Theorems and Formulas	11872	48015	A difficult NT problem Today, at 1:08 am idontthinkso
	High-School Contests Different math contests for high-school students, including the IMO, BMO, National Olympiads, MathLinks Contest. Moderators: High School Olympiad Moderators, Arne, darij grinberg, orl Sub-forums: MathLinks Contest, National Olympiads, International Mathematical Olympiad, IMO Shortlist, Download	1615	12864	New to AoPS Sat Nov 28, 2009 12:53 pm potency
College Playground
	Calculus - Real Analysis Moderators: College Playground Moderators Sub-forums: Calculus Computations and Tutorials, Unsolved and Proposed Problems, Solved Problems, Theorems, Formulas and Other Questions	20536	87603	Limes 1 Today, at 1:02 am suadnovic
	Matrix - Linear Algebra Problems involving linear transformations of matrices, linear algebra, vectorial spaces, etc. Moderators: College Playground Moderators Sub-forums: Matrix Algebra - Computations and Tutorials, Unsolved and Proposed Problems, Solved Problems, Theorems, Formulas and Other Questions	4086	15568	Cofactors and Inverse Yesterday, at 11:18 pm Tojoyk
	Superior Algebra - Groups, Fields, Rings, Ideals Problems about groups, fields, rings, ideals, quotient rings, extensions, Galois, etc. Moderators: College Playground Moderators Sub-forums: Unsolved and Proposed Problems, Solved Problems, Theorems, Formulas and Other Questions	5502	21129	Advanced Linear Algebr... Today, at 1:11 am Carcul
	Complex Analysis Problems in complex analysis Moderators: College Playground Moderators Sub-forums: Computationals and Tutorials, Unsolved and Proposed Problems, Solved Problems, Theorems, Formulas and Other Questions	1492	5402	analytic function Yesterday, at 7:02 pm Kent Merryfield
	Advanced fields Differential geometry, algebraic geometry, complex analysis, anything beyond first year of college, etc. Moderators: College Playground Moderators Sub-forums: Unsolved and Proposed Problems, Solved Problems, Theorems, Formulas and Other Questions	2630	8212	Depth/height Today, at 1:12 am Soarer
	Probabilities and Statistics Moderators: College Playground Moderators	1047	3834	Cantor distribution Yesterday, at 7:10 pm mstrip
	Topology Moderators: College Playground Moderators	305	1185	Euler characteristic a... Today, at 1:09 am Nukular
	Contests & Research Topics for Undergrads Moderators: College Playground Moderators Sub-forums: Research Ideas, Putnam, International Mathematics Competition, Other Undergrad Contests	559	3684	New to AoPS Sat Nov 28, 2009 9:00 pm JBL
Arts & Sciences
	Biology Moderators: adidasty, hillarryous	227	1197	Enzyme Activity Thu Nov 19, 2009 4:43 pm Stank
	Chemistry Moderators: Entropy2, gregx007	1639	9497	Chemistry resources Fri Nov 27, 2009 7:14 am savy2020
	Computer Science and Informatics Moderators: nebula42, nr1337	859	4141	A program or Matlab co... Sat Nov 28, 2009 2:32 pm MeKnowsNothing
	Introductory Physics For the discussion of introductory physics and homework help. Moderators: pardesi, Rushil	898	3510	Yo-yo tricks (1) Fri Nov 27, 2009 11:15 am Fang
	Advanced Physics For discussion of challenging physics problems. Moderators: pardesi, Rushil, xxreddevilzxx	1625	10317	Thermodynamics and Flu... Yesterday, at 10:35 pm savy2020
	Astronomy & Engineering	93	562	proving linearity Tue Nov 03, 2009 3:51 am aadil
	Economics	106	461	Solutions to varian's ... Sun Nov 15, 2009 3:20 pm kjust123
	Graphical Design Show off your cool graphical design work here. Moderators: MithsApprentice	62	539	Gimp Fri Sep 25, 2009 7:07 pm westiepaw
	Music & Art For discussion of creation and performance. Moderators: tokenadult	176	2459	How long have you guys... Thu Nov 26, 2009 2:44 pm Treeswitheyes
	Linguistics	76	550	Help With Shakespearea... Yesterday, at 7:31 am 314.math
Other Topics
	The Round Table For serious discussion of other topics. Moderators: JBL	2117	32942	What Do Adults Do? Yesterday, at 12:07 pm Gen8
	Games For serious discussion of games. Moderators: dragon96, fedja, joml88, Klebian, ZetaX Sub-forums: Mafia!, Fun Factory	3265	175428	Time travellers Yesterday, at 10:04 pm dragon96
	College Have questions or suggestions on preparing for college or finding the right school? Moderators: tokenadult	1055	11340	"The Calculus Trap"... Sat Nov 28, 2009 11:31 pm pascal12
	Careers in Mathematics Discuss careers in mathematics. Sponsored by Jane Street Capital. Moderators: mysmartmouth	160	1176	Number of mathematicians Yesterday, at 4:58 pm Los
Online School
	Classes Information Ask questions about Art of Problem Solving classes.	631	3992	Intermediate Counting ... Yesterday, at 7:43 pm PowerOfPi
Alcumus
	Alcumus For discussion of Alcumus	206	1198	is Alcumus a good way ... Yesterday, at 4:12 pm PhireKaLk6781
	Alcumus Problem Discussion Discussion of problems within Alcumus	742	2188	#4719 A point $(x,y)$ ... Yesterday, at 9:08 pm GameBot
	Alcumus Video Lesson Discussion	80	213	Probability - Think Ab... Thu Nov 26, 2009 6:09 pm jenrenlovesbacon
AoPS For The Win
	FTW Questions & Support Post your questions and bug reports about AoPS For The Win here.	669	5186	FTW2 Yesterday, at 3:06 pm PhireKaLk6781
	FTW Problems Discussion Discuss problems in the AoPS For The Win game. Moderators: isabella2296	You must register to access topics in this forum.
National & Local Communities
	National and Local Communities Round Table A community for national and local community moderators and users to exchange ideas on how to better their communities.	55	498	Mu Alpha Theta Problem Wed Nov 18, 2009 9:50 pm Ronnicus
	Asia & Oceania Sub-forums: Australia, Korean, Chinese Communities, Japanese Communities, India, Vietnam, Iran, Pakistan, Philippines, Tajikistan	2481	29242	RMO Post exam and Pre ... Today, at 1:13 am nuclear_alchemist
	Africa Moderators: Arne Sub-forums: General and Math Discussions	43	263	find area Mon Sep 07, 2009 7:42 pm BhatiaPiyush
	Europe Sub-forums: British, Bulgarian, Czech, Ελληνικά, Français, Hungarian, Deutsch, Dutch (Netherlands, Flanders), Italy, Norwegian, Poland, Romanian - Română, Russian - Russkij, Spanish Communities, Turkey, (Former) Yugoslavia	4334	27989	μαθηματικος... Today, at 1:30 am Demetres
	North America Canada and US Local Communities Sub-forums: San Diego Math Circle, SDMC Parents, Canada, A&M Consolidated, Alabama, Arizona, Bay Area, Colorado, Colorado (private), Connecticut, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Michigan (private), Minnesota, Missouri, Nevada, New Hampshire, New Jersey, New Mexico, North Carolina, NYC, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Southern California ARML, Texas, Texas (private), Upstate New York, Utah, Valley Math Circle, Vermont, Virginia, Washington, West Virginia, Wisconsin	3185	43843	Rockdale Mathematics C... Yesterday, at 6:27 pm Math Geek
Site & General Information
	Questions, Suggestions, & Announcements For questions, suggestions, and announcements regarding this site.	1450	9326	Blog Yesterday, at 10:44 am jjfun1
	AoPS Wiki The forum for discussion of all things wiki related. Moderators: Temperal	150	765	"Recent Changes" on th... Tue Sep 29, 2009 2:58 pm JBL
	Test Forum Test all the new (& old) features here. All posts will be deleted eventually. Please do not abuse. Moderators: Moderators	710	2349	fraction test Yesterday, at 6:19 pm ProtestanT
	Asymptote and GeoGebra For discussion of the descriptive vector graphics language Asymptote, and also for the discussion of the visual geometry program GeoGebra Moderators: fedja, stevem	254	1469	Help in Asymptote! Mon Nov 16, 2009 4:04 am athunder
	LaTeX For questions about the math typesetting program LaTeX. Moderators: fedja, stevem	1948	8666	Any suggestions Yesterday, at 6:15 am Bama Gambler

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