Mathematics

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Recent downtimes and site being slow

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The abacus and the slide rule

Last post by The_Metatron « May 09, 2024 11:56 am
Replies: 44
by sweitzen » Jan 06, 2011 9:26 pm
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44 Replies

16225 Views

Last post by The_Metatron
May 09, 2024 11:56 am
Challenge

Last post by i have no avatar « Nov 28, 2023 6:24 am
Replies: 14
by scott1328 » Nov 14, 2019 5:14 pm

14 Replies

2588 Views

Last post by i have no avatar
Nov 28, 2023 6:24 am
an integer(1)= a non-integer(0.999...) ends in contradiction

Last post by Evolving « Apr 29, 2023 3:17 pm
Replies: 10
by chaos-void » Apr 28, 2023 8:15 pm

10 Replies

808 Views

Last post by Evolving
Apr 29, 2023 3:17 pm
A 1 unit by 1 unit √2 triangle cannot be constructed

Last post by Thommo « Apr 29, 2023 8:19 am
Replies: 7
by chaos-void » Apr 28, 2023 8:17 pm

7 Replies

922 Views

Last post by Thommo
Apr 29, 2023 8:19 am
Godel's theorems 1 & 2 to be invalid:end in meaninglessness

Last post by Spearthrower « Apr 29, 2023 4:11 am
Replies: 1
by chaos-void » Apr 28, 2023 8:20 pm

1 Replies

659 Views

Last post by Spearthrower
Apr 29, 2023 4:11 am
Why Does Mathematics Work?

Last post by BWE « Jun 09, 2022 9:27 pm
Replies: 64
by Spearthrower » May 04, 2019 8:01 pm
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64 Replies

11521 Views

Last post by BWE
Jun 09, 2022 9:27 pm
The Langlands Program

Last post by newolder « Jun 02, 2022 10:37 am

by newolder » Jun 02, 2022 10:37 am

0 Replies

1446 Views

Last post by newolder
Jun 02, 2022 10:37 am
A question about Pseudo-random number generator

Last post by scott1328 « Apr 18, 2022 4:33 pm
Replies: 21
by scott1328 » Apr 14, 2022 2:24 pm
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21 Replies

2672 Views

Last post by scott1328
Apr 18, 2022 4:33 pm
Led Astray By Intuition

Last post by Cito di Pense « Mar 15, 2022 6:21 am
Replies: 4
by Calilasseia » Feb 22, 2022 11:43 pm

4 Replies

1149 Views

Last post by Cito di Pense
Mar 15, 2022 6:21 am
Tensors Introductory Textbook

Last post by hackenslash « Nov 15, 2021 8:40 am
Replies: 4
by AlanF » Apr 10, 2021 6:52 pm

4 Replies

1573 Views

Last post by hackenslash
Nov 15, 2021 8:40 am
In search of a sorting algorithm

Last post by scott1328 « Jun 28, 2021 4:25 pm
Replies: 1
by scott1328 » Jun 24, 2021 6:19 pm

1 Replies

1269 Views

Last post by scott1328
Jun 28, 2021 4:25 pm
Inspiring Maths

Last post by Newmark « Jan 20, 2021 10:30 am
Replies: 20
by Spearthrower » Jan 05, 2021 9:38 am
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20 Replies

6208 Views

Last post by Newmark
Jan 20, 2021 10:30 am
Graduate Student Solves Decades-Old Conway Knot Problem

Last post by Hermit « Oct 19, 2020 10:53 am
Replies: 1
by Mike_L » Oct 15, 2020 6:49 am

1 Replies

1399 Views

Last post by Hermit
Oct 19, 2020 10:53 am
Nice video on Penrose tiling (nah, me neither)

Last post by THWOTH « Oct 16, 2020 5:38 pm
Replies: 4
by don't get me started » Oct 14, 2020 11:39 pm

4 Replies

1526 Views

Last post by THWOTH
Oct 16, 2020 5:38 pm
Help Needed - New Scientist Article

Last post by newolder « Apr 27, 2020 6:35 pm
Replies: 9
by Calilasseia » Apr 24, 2020 6:44 pm

9 Replies

2334 Views

Last post by newolder
Apr 27, 2020 6:35 pm
Where math meets physics

Last post by campermon « Feb 20, 2020 6:49 pm
Replies: 5
by socratus » Feb 19, 2020 7:25 am

5 Replies

2039 Views

Last post by campermon
Feb 20, 2020 6:49 pm
Largest known prime number discovered in Missouri

Last post by newolder « Nov 20, 2019 6:28 pm
Replies: 21
by DougC » Jan 22, 2016 12:25 am
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21 Replies

7529 Views

Last post by newolder
Nov 20, 2019 6:28 pm
42 as the sum of 3 cubes is solved. Hooray!

Last post by rationalityiscorrect « Sep 28, 2019 5:19 am
Replies: 4
by newolder » Sep 06, 2019 7:12 pm

4 Replies

1883 Views

Last post by rationalityiscorrect
Sep 28, 2019 5:19 am
Statistical "anomaly"

Last post by Arcanyn « Aug 27, 2019 4:51 am
Replies: 4
by aban57 » Aug 25, 2019 8:12 am

4 Replies

1952 Views

Last post by Arcanyn
Aug 27, 2019 4:51 am
Math problem...need help

Last post by Fenrir « Jul 08, 2019 3:59 am
Replies: 6
by ackmanben1988 » Jul 08, 2019 12:29 am

6 Replies

1880 Views

Last post by Fenrir
Jul 08, 2019 3:59 am
The Field Of Large Numbers

Last post by surreptitious57 « May 27, 2019 1:47 pm
Replies: 19
by aufbahrung » May 26, 2019 1:18 pm

19 Replies

2610 Views

Last post by surreptitious57
May 27, 2019 1:47 pm
Engineering Mathematics

Last post by Thommo « May 26, 2019 8:15 pm
Replies: 11
by aufbahrung » May 26, 2019 7:09 pm

11 Replies

2018 Views

Last post by Thommo
May 26, 2019 8:15 pm
What do I need to learn to understand harmonic maps?

Last post by newolder « Mar 21, 2019 9:05 am
Replies: 4
by Sityll » Mar 20, 2019 2:31 pm

4 Replies

1847 Views

Last post by newolder
Mar 21, 2019 9:05 am
Happy Pi Day!

Last post by Alan B « Mar 14, 2019 3:36 pm
Replies: 45
by CdesignProponentsist » Mar 14, 2016 5:43 pm
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45 Replies

10546 Views

Last post by Alan B
Mar 14, 2019 3:36 pm
Riemann Hypothesis

Last post by i have no avatar « Jan 12, 2019 5:36 pm
Replies: 5
by newolder » Sep 24, 2018 11:59 am

5 Replies

2517 Views

Last post by i have no avatar
Jan 12, 2019 5:36 pm
The Reason For The Proscription Against Division By Zero

Last post by Cito di Pense « Jan 04, 2019 2:25 pm
Replies: 278
by scherado » Oct 25, 2018 10:06 pm
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278 Replies

28141 Views

Last post by Cito di Pense
Jan 04, 2019 2:25 pm
What is the sum of this convergent series?

Last post by Thomas Eshuis « Dec 27, 2018 8:37 am
Replies: 5
by scott1328 » Dec 27, 2018 1:57 am

5 Replies

1950 Views

Last post by Thomas Eshuis
Dec 27, 2018 8:37 am
Why does probability work?

Last post by Thommo « Nov 19, 2018 3:41 am
Replies: 30
by BWE » Nov 18, 2018 7:03 am
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30 Replies

5596 Views

Last post by Thommo
Nov 19, 2018 3:41 am
Joking - My girlfriend has an answer for sleep

Last post by jaydot « Nov 18, 2018 5:18 am
Replies: 3
by talkietoaster » Nov 16, 2018 2:15 pm

3 Replies

2019 Views

Last post by jaydot
Nov 18, 2018 5:18 am
Japanese Multiplication.

Last post by hackenslash « Nov 03, 2018 10:34 pm
Replies: 6
by Animavore » Nov 03, 2018 11:23 am

6 Replies

2236 Views

Last post by hackenslash
Nov 03, 2018 10:34 pm
A SEASONAL MATHS PUZZLE

Last post by Evolving « Oct 28, 2018 9:53 am
Replies: 6
by LjSpike » Dec 24, 2016 12:04 pm

6 Replies

2557 Views

Last post by Evolving
Oct 28, 2018 9:53 am
Two cubed is sixteen

Last post by Cito di Pense « Apr 17, 2018 3:27 pm
Replies: 23
by devogue » Dec 22, 2017 5:31 am
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23 Replies

7112 Views

Last post by Cito di Pense
Apr 17, 2018 3:27 pm
Counter-intuitive Summation

Last post by newolder « Jan 30, 2018 4:46 pm
Replies: 56
by Paradoxica » Jan 10, 2014 9:31 am
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56 Replies

16844 Views

Last post by newolder
Jan 30, 2018 4:46 pm
Climbing to a prime (John Conway)

Last post by newolder « Jun 08, 2017 12:48 pm

by newolder » Jun 08, 2017 12:48 pm

0 Replies

2428 Views

Last post by newolder
Jun 08, 2017 12:48 pm
An incredibly messy but interesting graph...

Last post by LjSpike « May 18, 2017 5:23 pm

by LjSpike » May 18, 2017 5:23 pm

0 Replies

2312 Views

Last post by LjSpike
May 18, 2017 5:23 pm
Over half of them are above average = impossible?

Last post by Matt_B « May 11, 2017 10:40 am
Replies: 18
by Rumraket » May 09, 2017 9:26 pm

18 Replies

3281 Views

Last post by Matt_B
May 11, 2017 10:40 am
Catenary Problem

Last post by Macdoc « May 05, 2017 8:57 pm
Replies: 5
by Calilasseia » May 05, 2017 2:20 pm

5 Replies

2691 Views

Last post by Macdoc
May 05, 2017 8:57 pm
youtube channel 3Blue1Brown

Last post by LucidFlight « May 01, 2017 10:02 pm
Replies: 6
by Pulsar » Feb 28, 2017 1:37 am

6 Replies

3629 Views

Last post by LucidFlight
May 01, 2017 10:02 pm
Question with maximum points of some curves...

Last post by LjSpike « Apr 12, 2017 11:51 am
Replies: 3
by LjSpike » Apr 11, 2017 3:54 pm

3 Replies

2160 Views

Last post by LjSpike
Apr 12, 2017 11:51 am
An interesting graph I came across

Last post by LjSpike « Apr 04, 2017 8:31 pm

by LjSpike » Apr 04, 2017 8:31 pm

0 Replies

2284 Views

Last post by LjSpike
Apr 04, 2017 8:31 pm
degree of an equation

Last post by Calilasseia « Mar 16, 2017 7:25 pm
Replies: 12
by blackhash » Mar 13, 2017 6:11 am

12 Replies

2886 Views

Last post by Calilasseia
Mar 16, 2017 7:25 pm
Set of little observations with prime numbers...

Last post by newolder « Mar 12, 2017 4:36 pm
Replies: 3
by LjSpike » Mar 12, 2017 12:53 pm

3 Replies

2170 Views

Last post by newolder
Mar 12, 2017 4:36 pm
Hamiltonian for the zeros of the Reimann

Last post by newolder « Mar 08, 2017 2:48 pm

by newolder » Mar 08, 2017 2:48 pm

0 Replies

2264 Views

Last post by newolder
Mar 08, 2017 2:48 pm
On the unreasonable effectiveness of physics in

Last post by newolder « Jan 20, 2017 8:11 pm
Replies: 5
by newolder » Jan 19, 2017 9:05 pm

5 Replies

2720 Views

Last post by newolder
Jan 20, 2017 8:11 pm
Pandigital formula approximates e

Last post by crank « Dec 24, 2016 2:43 pm
Replies: 3
by newolder » Dec 24, 2016 11:16 am

3 Replies

4568 Views

Last post by crank
Dec 24, 2016 2:43 pm
Project Euler as programming practice

Last post by TopCat « Dec 22, 2016 1:46 pm

by TopCat » Dec 22, 2016 1:46 pm

0 Replies

2236 Views

Last post by TopCat
Dec 22, 2016 1:46 pm
1+2+3+4+5.... = -1/12

Last post by newolder « Dec 09, 2016 1:58 pm
Replies: 49
by aban57 » Nov 30, 2016 1:22 pm
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49 Replies

10922 Views

Last post by newolder
Dec 09, 2016 1:58 pm
Playing with Desmos Graphing (for radial graphs)

Last post by LjSpike « Dec 01, 2016 9:02 pm

by LjSpike » Dec 01, 2016 9:02 pm

0 Replies

2401 Views

Last post by LjSpike
Dec 01, 2016 9:02 pm
Need a formula

Last post by scott1328 « Nov 05, 2016 1:34 pm
Replies: 4
by scott1328 » Nov 05, 2016 4:53 am

4 Replies

2531 Views

Last post by scott1328
Nov 05, 2016 1:34 pm
List of unsolved problems in mathematics

Last post by Macdoc « Oct 23, 2016 10:26 pm
Replies: 2
by the_5th_ape » Oct 22, 2016 12:54 pm

2 Replies

2327 Views

Last post by Macdoc
Oct 23, 2016 10:26 pm

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