I've been wrongfully disabled
by K124659, Jul 5, 2025, 4:08 AM
Summary of the problem: My alcumus account has been "banned"
Page URL: Anywhere on alcumus
Steps to reproduce (I reccomend you don't):
1. Answer questions extremely quickly whilst spamming the enter button
Expected behavior: You'll get banned. I believe this is some sort of system to disable bots.
Frequency: I'm not sure.
Operating system(s): Acer 311 Chromebook
Browser(s), including version: Google Chrome
Additional information: I believe this is due to the fact that I knew most of the questions either by heart or because they are extremely easy (It was multiplying fractions in pre-algebra that got me banned), and as a result I was going too fast and was spamming inputs into the system, similar to a bot. I wasn't using a bot, however. I'm not even grinding HOF- I had broken record as a quest with my problem streak being 399 previously, so my usage of the same subject to get a bunch correct was lowk necessary ngl.
Page URL: Anywhere on alcumus
Steps to reproduce (I reccomend you don't):
1. Answer questions extremely quickly whilst spamming the enter button
Expected behavior: You'll get banned. I believe this is some sort of system to disable bots.
Frequency: I'm not sure.
Operating system(s): Acer 311 Chromebook
Browser(s), including version: Google Chrome
Additional information: I believe this is due to the fact that I knew most of the questions either by heart or because they are extremely easy (It was multiplying fractions in pre-algebra that got me banned), and as a result I was going too fast and was spamming inputs into the system, similar to a bot. I wasn't using a bot, however. I'm not even grinding HOF- I had broken record as a quest with my problem streak being 399 previously, so my usage of the same subject to get a bunch correct was lowk necessary ngl.
Happy 4th of July!!!
by pingpongmerrily, Jul 4, 2025, 12:08 PM
AoPS is taking classes off for it, so I think we should celebrate it...
Happy 4th of July!!!


This post has been edited 3 times. Last edited by pingpongmerrily, Jul 4, 2025, 12:11 PM
Reason: 3 edits lmao
Reason: 3 edits lmao
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Searching for keywords
by Cats_on_a_computer, Jul 4, 2025, 10:27 AM
Quick question because I’m new here, I keep searching keywords in the community search functions to check if they’ve been posted before, and every time it ended up not finding the original, leading to a repost. This has happened so many times I’ve decided not to post anymore until I can somehow find a way to efficiently search for it.
I accidentally reposted a Putnam 2006, even though I searched for the keywords in the question, but since I didn’t know it was a Putnam problem (I had seen it somewhere else), I didn’t manage to find the problem so unknowingly reposted it.
I accidentally reposted a Putnam 2006, even though I searched for the keywords in the question, but since I didn’t know it was a Putnam problem (I had seen it somewhere else), I didn’t manage to find the problem so unknowingly reposted it.
Just so SS knows....
by jmr2010, Jul 2, 2025, 3:28 PM
If you open a PM, specify yourself, and put something there, then hit send, it says you are automatically included and if you want to talk to yourself, leave the to box blank. If you leave the box blank, it won't send the PM because the to box is blank
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REQUEST LOCK
by KangarooPrecise, Jul 2, 2025, 1:24 PM
On my username, why is there 3 dots after it, when 2 letters are missing?
This post has been edited 1 time. Last edited by KangarooPrecise, Jul 3, 2025, 12:58 AM
Processing module python not working
by Demetri, Jul 1, 2025, 10:40 PM
The following code doesn't work, because canvas isn't implemented for the processing module:
I believe this is an easy fix, someone just forgot to add the line "Sk.canvas = outcanvas;"(or something similar) in the code for the pywindow, which would give an output.
import processing def setup(): processing.size(200, 200) def draw(): processing.ellipse(100, 100, 50, 50) processing.noLoop() processing.run()
I believe this is an easy fix, someone just forgot to add the line "Sk.canvas = outcanvas;"(or something similar) in the code for the pywindow, which would give an output.
This post has been edited 4 times. Last edited by Demetri, Jul 2, 2025, 11:44 AM
I can't type into boxes during lessons
by HADP, Jul 1, 2025, 5:17 PM
Recently, I have been experiencing an issue where i can't type into the boxes that professors post during a lesson. I can't input an answer and i've tried refreshing multiple times and it doesn't work. This has happened in many lessons in a row. Please help! Also, is there a way to make Aops dark mode?
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PAGE NOT SCROLLING DOWN ALL THE WAY; GETS STUCK 1.5 POSTS BEFORE THREAD END
by CurlyFalcon55, Jun 1, 2025, 11:23 PM
Summary of the problem:
Whenever I push the big, top right "Reply" button– NOT THE SMALL LITTLE "QUICK REPLY" BAR ON THE BOTTOM, and reply, I can't scroll down all the way to the bottom of the thread that I just posted in. Sometimes, very rarely though, I doesn't scroll down all the way when I push the "Quick Reply" bar.
Page URL:
Anywhere in the "Introduction to Number Theory" forum in AoPS
Steps to reproduce:
1. Go to the link above.
2. Click any thread or create a new one.
3. Click the "Reply" button, not the quick reply bar.
4. Type a reply.
5. Push the "Submit" button.
6. Try to scroll down. if you’re lucky, the problem will reproduce.
Expected behavior:
To scroll all the way down.
Frequency:
Almost every time I push the big "Reply" button, sometimes (but rarely) when I push the "Quick Reply" bar.
Operating system(s):
macOS Sequoia 15.4.1
Browser(s), including version:
Chrome, (I don't know what version)
Additional information:
-It rarely does it in the "Quick Reply" bar.
-It almost always does it in the big "Reply" button on the top right.
Can anyone reproduce?
Whenever I push the big, top right "Reply" button– NOT THE SMALL LITTLE "QUICK REPLY" BAR ON THE BOTTOM, and reply, I can't scroll down all the way to the bottom of the thread that I just posted in. Sometimes, very rarely though, I doesn't scroll down all the way when I push the "Quick Reply" bar.
Page URL:
Anywhere in the "Introduction to Number Theory" forum in AoPS
Steps to reproduce:
1. Go to the link above.
2. Click any thread or create a new one.
3. Click the "Reply" button, not the quick reply bar.
4. Type a reply.
5. Push the "Submit" button.
6. Try to scroll down. if you’re lucky, the problem will reproduce.
Expected behavior:
To scroll all the way down.
Frequency:
Almost every time I push the big "Reply" button, sometimes (but rarely) when I push the "Quick Reply" bar.
Operating system(s):
macOS Sequoia 15.4.1
Browser(s), including version:
Chrome, (I don't know what version)
Additional information:
-It rarely does it in the "Quick Reply" bar.
-It almost always does it in the big "Reply" button on the top right.
Can anyone reproduce?
This post has been edited 1 time. Last edited by CurlyFalcon55, Jun 1, 2025, 11:25 PM
Reason: last sentence
Reason: last sentence
Cannot post PHP
by char0221, Apr 30, 2025, 1:23 AM
Summary of the problem: If I try to post anything with PHP (a coding language), it
Page URL: In any forum or private messages
Steps to reproduce:
1. Create a post.
2. Put some PHP inside, can't give example
Expected behavior: Should post the message
Frequency: 100%
Operating system(s): macOS Sequoia 15.2.1
Browser(s), including version: Safari
Additional information: See attachments
Page URL: In any forum or private messages
Steps to reproduce:
1. Create a post.
2. Put some PHP inside, can't give example
Expected behavior: Should post the message
Frequency: 100%
Operating system(s): macOS Sequoia 15.2.1
Browser(s), including version: Safari
Additional information: See attachments
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Eighteenth-century nonsense
by math_explorer, Oct 29, 2017, 11:31 PM
Passing memes between social platforms (and posting in October)...
Let
be the set of rooted binary trees, where we include the empty tree with 0 nodes. There is an obvious bijection between nonempty trees in
and pairs of trees in
, by taking the left and right subtree of
. So there is an obvious bijection between
and {the empty tree, plus pairs of trees in
}.
Let's write this as
, so
. In other words,
is a sixth root of unity.
So
. Unfortunately this is absurd because there is more than one 6-tuple of trees.
But, let's try again and write
. And in fact:
Now the question is, of course: how did treating
, an infinite set of combinatorial objects, as a complex number produce a reasonable theorem?
It turns out there's some ring theory you can pull to see why this is the case. Some arXiv papers on the subject: https://arxiv.org/pdf/math/9405205v1.pdf https://arxiv.org/abs/math/0212377
Let






Let's write this as



So

But, let's try again and write

- There is a "very explicit" bijection between the set of 7-tuples of trees, and the set of all trees. Here "very explicit" means that to map 7 trees to 1, you just need to inspect the 7 trees down to a fixed finite depth, independent of what the trees actually are, to construct some part of the 1 tree. Then you can paste the subtrees beneath that depth to subtrees of what you constructed.
- This is tight: there exists a very explicit bijection between the set of
-tuples of trees and trees iff
.
Now the question is, of course: how did treating

It turns out there's some ring theory you can pull to see why this is the case. Some arXiv papers on the subject: https://arxiv.org/pdf/math/9405205v1.pdf https://arxiv.org/abs/math/0212377
♪ i just hope you understand / sometimes the clothes do not make the man ♫ // https://beta.vero.site/
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