Mathematics

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Forum Migration

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TeX the World

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xkcd Forum Rules - Updated 6th of Feb, 2017

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WE ALREADY KNOW ABOUT THE .999 --> 1 THING (and 0/0 etc)

Last post by hermaj « Tue Oct 30, 2007 12:06 am UTC

by hermaj » Tue Oct 30, 2007 12:06 am UTC

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Math Rules - Updated 2010/12/16

Last post by P13808 « Mon Aug 19, 2013 7:28 am UTC
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by gmalivuk » Tue May 01, 2007 8:42 pm UTC

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vertex cut / graph / combinatorics problem

Last post by >-) « Tue Mar 07, 2017 1:39 pm UTC
Replies: 5
by >-) » Mon Mar 06, 2017 6:05 pm UTC

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Last post by >-) View the latest post
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Probability problem

Last post by Goahead52 « Fri Mar 03, 2017 9:24 pm UTC
Replies: 13
by Goahead52 » Wed Feb 22, 2017 4:04 pm UTC

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Help with a 9 Variable Equation

Last post by Xenomortis « Wed Mar 01, 2017 10:22 pm UTC
Replies: 6
by jewish_scientist » Mon Feb 27, 2017 6:51 pm UTC

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WoW: A Strange Game. The only way to win is not to play.

Last post by Xanthir « Mon Feb 27, 2017 9:57 pm UTC
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by Cave Wizard » Sat Feb 25, 2017 8:02 pm UTC

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Question about T^2 and Q Residuals...

Last post by rezangyal « Thu Feb 23, 2017 4:40 pm UTC

by rezangyal » Thu Feb 23, 2017 4:40 pm UTC

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Convert points from a 2d space with a real dimension x and an imaginary dimension y

Last post by gmalivuk « Wed Feb 22, 2017 8:46 pm UTC
Replies: 19
Attachment(s) by MrY » Tue Feb 21, 2017 5:33 pm UTC

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Stats Question

Last post by MartianInvader « Wed Feb 22, 2017 8:15 pm UTC
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by SomeFloridaKid » Wed Feb 22, 2017 1:49 am UTC

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"There is an Exception to every rule"

Last post by Xanthir « Fri Feb 17, 2017 10:48 pm UTC
Replies: 32
by lorb » Sat Feb 04, 2017 4:01 pm UTC

32 Replies

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Reverse carry-less binary multiplication problem

Last post by SecMunic « Tue Feb 14, 2017 3:45 pm UTC
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by deskjethp » Fri Nov 20, 2015 10:48 pm UTC

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Genetics in a species with three sex chromosomes

Last post by Eebster the Great « Sun Feb 12, 2017 3:32 am UTC
Replies: 18
by captHij » Thu Feb 02, 2017 1:57 pm UTC

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Favorite math jokes

Last post by Yakk « Fri Feb 10, 2017 2:24 pm UTC
Replies: 1452
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Attachment(s) by Zohar » Sat May 26, 2007 10:43 am UTC
1452 Replies

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Last post by Yakk View the latest post
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Binary representation. Any number can be written as the sum of distinct powers of 2.

Last post by Eebster the Great « Sat Feb 04, 2017 1:30 am UTC
Replies: 4
by jacksmack » Fri Feb 03, 2017 12:17 pm UTC

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Combinatorics with constraint

Last post by Goahead52 « Fri Feb 03, 2017 3:43 pm UTC
Replies: 14
by Goahead52 » Sat Jan 21, 2017 11:47 am UTC

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variance of a sum of iid random variables

Last post by >-) « Tue Jan 31, 2017 1:15 pm UTC
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by >-) » Tue Jan 31, 2017 4:04 am UTC

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N-player combinatorial game theory

Last post by arbiteroftruth « Mon Jan 16, 2017 7:05 pm UTC
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by arbiteroftruth » Thu Jan 12, 2017 10:11 pm UTC

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Mathematics of p-hacking: random walks and significance

Last post by gmalivuk « Wed Jan 11, 2017 6:05 pm UTC
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by gmalivuk » Tue Jan 10, 2017 11:11 pm UTC

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Common pivot point and/or intersecting planes

Last post by Exouxas « Tue Jan 10, 2017 8:29 am UTC
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by Exouxas » Mon Jan 09, 2017 1:49 pm UTC

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How to Calculate Pi without a Calculator?

Last post by DavidSh « Sun Jan 08, 2017 3:12 pm UTC
Replies: 66
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by liberonscien » Thu Aug 18, 2016 5:27 pm UTC
66 Replies

6926 Views

Last post by DavidSh View the latest post
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Combinatoric commanders

Last post by PM 2Ring « Fri Dec 30, 2016 7:58 am UTC
Replies: 6
by fealuinix » Thu Dec 29, 2016 5:59 am UTC

6 Replies

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Last post by PM 2Ring View the latest post
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chain rules matrix derivatives

Last post by doogly « Tue Dec 27, 2016 4:44 am UTC
Replies: 2
by >-) » Sun Dec 25, 2016 11:27 pm UTC

2 Replies

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Probability distribution on the power set of natural numbers?

Last post by DavCrav « Mon Dec 26, 2016 12:29 pm UTC
Replies: 12
by gmalivuk » Thu Dec 22, 2016 8:51 pm UTC

12 Replies

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Last post by DavCrav View the latest post
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Can't keep up with all the math behind machine learning

Last post by DavCrav « Mon Dec 26, 2016 12:21 pm UTC
Replies: 3
by jacques01 » Sat Dec 24, 2016 4:00 am UTC

3 Replies

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Last post by DavCrav View the latest post
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expected "lifespan" of a random process

Last post by >-) « Fri Dec 23, 2016 5:08 am UTC
Replies: 4
by >-) » Tue Dec 20, 2016 1:38 pm UTC

4 Replies

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What's your favourite irrational number?

Last post by Eebster the Great « Wed Dec 21, 2016 4:06 am UTC
Replies: 78
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by chrispy1 » Thu Jun 14, 2007 4:32 pm UTC
78 Replies

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Last post by Eebster the Great View the latest post
Wed Dec 21, 2016 4:06 am UTC
Geometric Growth vs. Geometric Pattern

Last post by Eebster the Great « Sat Dec 10, 2016 5:49 am UTC
Replies: 3
by jewish_scientist » Fri Dec 09, 2016 4:30 pm UTC

3 Replies

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Last post by Eebster the Great View the latest post
Sat Dec 10, 2016 5:49 am UTC
Patient Probability Problem

Last post by Elmach « Sun Dec 04, 2016 1:50 am UTC
Replies: 7
by Forkbeard » Fri Dec 02, 2016 1:15 pm UTC

7 Replies

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Last post by Elmach View the latest post
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Three externally tangent circles sharing a single point of tangency

Last post by Xanthir « Tue Nov 29, 2016 11:50 pm UTC
Replies: 19
by GodShapedBullet » Tue Oct 25, 2016 5:53 pm UTC

19 Replies

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'Math is Pseudoscience and Fake Astrology' (Strange, Fringe Views by Prominent Figures)

Last post by Soupspoon « Thu Nov 24, 2016 8:55 pm UTC
Replies: 10
by poweruser » Sun Oct 02, 2016 1:22 am UTC

10 Replies

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Last post by Soupspoon View the latest post
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3 Statistics Questions

Last post by Xanthir « Fri Nov 18, 2016 11:19 pm UTC
Replies: 3
by jewish_scientist » Thu Nov 17, 2016 5:23 pm UTC

3 Replies

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Last post by Xanthir View the latest post
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Trying to figure out a thing in a video game.

Last post by drachefly « Fri Nov 18, 2016 9:02 pm UTC
Replies: 5
by TrickyD » Wed Nov 16, 2016 9:24 pm UTC

5 Replies

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Last post by drachefly View the latest post
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Problem with probability of students' scores

Last post by lorb « Tue Nov 08, 2016 11:15 am UTC
Replies: 4
by eMPiko » Mon Nov 07, 2016 12:11 am UTC

4 Replies

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Last post by lorb View the latest post
Tue Nov 08, 2016 11:15 am UTC
Order of Operations

Last post by Soupspoon « Sun Nov 06, 2016 4:59 am UTC
Replies: 4
by The Great Hippo » Sun Nov 06, 2016 3:04 am UTC

4 Replies

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Last post by Soupspoon View the latest post
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Finding a Quadrilateral for N Points

Last post by jewish_scientist « Mon Oct 31, 2016 4:16 pm UTC
Replies: 20
by jewish_scientist » Thu Oct 20, 2016 5:22 pm UTC

20 Replies

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Last post by jewish_scientist View the latest post
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Greatest Mathematician of all time?

Last post by xo503 « Wed Oct 26, 2016 12:41 am UTC
Replies: 65
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by xo503 » Thu Apr 30, 2015 7:02 am UTC
65 Replies

14364 Views

Last post by xo503 View the latest post
Wed Oct 26, 2016 12:41 am UTC
Primes under different moduli

Last post by PM 2Ring « Tue Oct 25, 2016 3:54 am UTC
Replies: 4
by Robert'); DROP TABLE *; » Sat Oct 22, 2016 4:01 pm UTC

4 Replies

1566 Views

Last post by PM 2Ring View the latest post
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Pay to Win - a game theory problem

Last post by Layco « Sun Oct 23, 2016 7:15 pm UTC
Replies: 21
by DrZiro » Mon Sep 05, 2016 12:56 am UTC

21 Replies

3681 Views

Last post by Layco View the latest post
Sun Oct 23, 2016 7:15 pm UTC
Factorization using modular arithmetic

Last post by Goahead52 « Sat Oct 22, 2016 1:11 pm UTC
Replies: 41
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by Goahead52 » Mon Oct 03, 2016 1:55 pm UTC
41 Replies

6175 Views

Last post by Goahead52 View the latest post
Sat Oct 22, 2016 1:11 pm UTC
Graph Theory Question

Last post by Flumble « Thu Oct 20, 2016 12:46 pm UTC
Replies: 1
by Ddanndt » Thu Oct 20, 2016 11:58 am UTC

1 Replies

1300 Views

Last post by Flumble View the latest post
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1 is Not Prime

Last post by Xanthir « Wed Oct 19, 2016 12:18 am UTC
Replies: 17
by jewish_scientist » Thu Aug 18, 2016 9:14 am UTC

17 Replies

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Last post by Xanthir View the latest post
Wed Oct 19, 2016 12:18 am UTC
uniform acceleration

Last post by EmelinaVollmering « Tue Oct 18, 2016 12:34 pm UTC
Replies: 3
by markosheehan » Sat Oct 08, 2016 12:10 pm UTC

3 Replies

1561 Views

Last post by EmelinaVollmering View the latest post
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Counting Zeros

Last post by EmelinaVollmering « Tue Oct 18, 2016 12:33 pm UTC
Replies: 4
by measure » Fri Aug 05, 2016 10:22 pm UTC

4 Replies

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Last post by EmelinaVollmering View the latest post
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Decimal like Concepts in Other Bases?

Last post by EmelinaVollmering « Tue Oct 18, 2016 12:30 pm UTC
Replies: 7
by liberonscien » Mon Aug 15, 2016 4:34 pm UTC

7 Replies

1847 Views

Last post by EmelinaVollmering View the latest post
Tue Oct 18, 2016 12:30 pm UTC
Fastest Minesweeper ever! What are the chances?

Last post by EmelinaVollmering « Tue Oct 18, 2016 11:47 am UTC
Replies: 14
Attachment(s) by Sableagle » Fri Sep 16, 2016 7:34 pm UTC

14 Replies

2897 Views

Last post by EmelinaVollmering View the latest post
Tue Oct 18, 2016 11:47 am UTC
Proving angles are equal in a triangle in a circle.

Last post by doogly « Tue Oct 18, 2016 1:22 am UTC
Replies: 15
Attachment(s) by markosheehan » Sun Oct 16, 2016 1:07 pm UTC

15 Replies

1991 Views

Last post by doogly View the latest post
Tue Oct 18, 2016 1:22 am UTC
how influential/impactful is Ufot Ekong solution?

Last post by cyanyoshi « Mon Oct 17, 2016 4:03 pm UTC
Replies: 8
by xo503 » Mon Jun 08, 2015 9:14 pm UTC

8 Replies

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Last post by cyanyoshi View the latest post
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Trisecting an angle

Last post by Eebster the Great « Mon Oct 17, 2016 3:58 am UTC
Replies: 63
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by Thunderbird4! » Thu Dec 20, 2007 2:49 am UTC
63 Replies

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Last post by Eebster the Great View the latest post
Mon Oct 17, 2016 3:58 am UTC
"Identical" sequences generated by 2 different methods

Last post by Goahead52 « Mon Oct 17, 2016 12:33 am UTC
Replies: 2
by Goahead52 » Sun Oct 16, 2016 10:56 pm UTC

2 Replies

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Why does x=y -> f(x)=f(y)?

Last post by Eebster the Great « Sat Oct 08, 2016 1:12 am UTC
Replies: 12
by Robert'); DROP TABLE *; » Thu Oct 06, 2016 10:33 pm UTC

12 Replies

2042 Views

Last post by Eebster the Great View the latest post
Sat Oct 08, 2016 1:12 am UTC
Vectors and Matrix Determinants

Last post by pogrmman « Wed Sep 28, 2016 9:33 pm UTC
Replies: 3
by pogrmman » Tue Sep 27, 2016 10:45 pm UTC

3 Replies

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Dataset of linear systems

Last post by kolobisbiko « Sun Sep 25, 2016 10:03 pm UTC
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by kolobisbiko » Sat Jul 23, 2016 5:21 pm UTC

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