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Tech support and questions about AoPS classes and materials
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k a May Highlights and 2025 AoPS Online Class Information
jlacosta   0
May 1, 2025
May is an exciting month! National MATHCOUNTS is the second week of May in Washington D.C. and our Founder, Richard Rusczyk will be presenting a seminar, Preparing Strong Math Students for College and Careers, on May 11th.

Are you interested in working towards MATHCOUNTS and don’t know where to start? We have you covered! If you have taken Prealgebra, then you are ready for MATHCOUNTS/AMC 8 Basics. Already aiming for State or National MATHCOUNTS and harder AMC 8 problems? Then our MATHCOUNTS/AMC 8 Advanced course is for you.

Summer camps are starting next month at the Virtual Campus in math and language arts that are 2 - to 4 - weeks in duration. Spaces are still available - don’t miss your chance to have an enriching summer experience. There are middle and high school competition math camps as well as Math Beasts camps that review key topics coupled with fun explorations covering areas such as graph theory (Math Beasts Camp 6), cryptography (Math Beasts Camp 7-8), and topology (Math Beasts Camp 8-9)!

Be sure to mark your calendars for the following upcoming events:
[list][*]May 9th, 4:30pm PT/7:30pm ET, Casework 2: Overwhelming Evidence — A Text Adventure, a game where participants will work together to navigate the map, solve puzzles, and win! All are welcome.
[*]May 19th, 4:30pm PT/7:30pm ET, What's Next After Beast Academy?, designed for students finishing Beast Academy and ready for Prealgebra 1.
[*]May 20th, 4:00pm PT/7:00pm ET, Mathcamp 2025 Qualifying Quiz Part 1 Math Jam, Problems 1 to 4, join the Canada/USA Mathcamp staff for this exciting Math Jam, where they discuss solutions to Problems 1 to 4 of the 2025 Mathcamp Qualifying Quiz!
[*]May 21st, 4:00pm PT/7:00pm ET, Mathcamp 2025 Qualifying Quiz Part 2 Math Jam, Problems 5 and 6, Canada/USA Mathcamp staff will discuss solutions to Problems 5 and 6 of the 2025 Mathcamp Qualifying Quiz![/list]
Our full course list for upcoming classes is below:
All classes run 7:30pm-8:45pm ET/4:30pm - 5:45pm PT unless otherwise noted.

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0 replies
jlacosta
May 1, 2025
0 replies
alcumus going crazy?
LittleSnake____   19
N 4 minutes ago by SpeedCuber7
all of a sudden, the alcumus forum has gotten completely exploded by gamebot's posts.

https://artofproblemsolving.com/community/c63h3570498_alcumus_going_crazy
19 replies
2 viewing
LittleSnake____
Today at 5:22 AM
SpeedCuber7
4 minutes ago
Gamebot Problem
zhenghua   4
N 5 minutes ago by MathPerson12321
Summary of the problem: Multiple topics of the same problem are on the feed.
Page URL: Global Feed
Steps to reproduce:
1. Open the global feed
2. There are a lot of topics of the same problem.
Expected behavior: Should only be one topic.
Frequency: 100%
Operating system(s): Windows 10
Browser(s), including version: Google (don't know which version)
Additional information: None
4 replies
zhenghua
18 minutes ago
MathPerson12321
5 minutes ago
Introducing myself at AoPS, and what's your magic wand?
asuth_asuth   1184
N 22 minutes ago by awesometriangles
Hi!

I'm Andrew Sutherland. I'm the new Chief Product Officer at AoPS. As you may have read, Richard is retiring and Ben Kornell and I are working together to lead the company now. I'm leading all the software and digital stuff at AoPS. I just wanted to say hello and introduce myself! I'm really excited to be part of the special community that is AoPS.

Previously, I founded Quizlet as a 15-year-old high school student. I did Course 6 at MIT and then left to lead Quizlet full-time for a total of 14 years. I took a few years off and now I'm doing AoPS! I wrote more about all that on my blog: https://asuth.com/im-joining-aops

I have a question for all of you. If you could wave a magic wand, and change anything about AoPS, what would it be? All suggestions welcome! Thank you.
1184 replies
asuth_asuth
Mar 30, 2025
awesometriangles
22 minutes ago
New user not allowed to use LaTeX
Cats_on_a_computer   5
N an hour ago by MathDolphin95
Do I seriously have to post everyday for 14 days for me not to be considered a “new user? I didn’t even upload any images, I just used LaTeX. How am I supposed to write anything without LaTeX?
5 replies
Cats_on_a_computer
5 hours ago
MathDolphin95
an hour ago
Inequalities
sqing   3
N 3 hours ago by sqing
Let $ a,b>0   $ . Prove that
$$ \frac{a}{a^2+a +2b+1}+ \frac{b}{b^2+2a +b+1}  \leq  \frac{2}{5} $$$$ \frac{a}{a^2+2a +b+1}+ \frac{b}{b^2+a +2b+1}  \leq  \frac{2}{5} $$
3 replies
sqing
May 13, 2025
sqing
3 hours ago
Pertenacious Polynomial Problem
BadAtCompetitionMath21420   5
N 3 hours ago by BadAtCompetitionMath21420
Let the polynomial $P(x) = x^3-x^2+px-q$ have real roots and real coefficients with $q>0$. What is the maximum value of $p+q$?

This is a problem I made for my math competition, and I wanted to see if someone would double-check my work (No Mike allowed):

solution
Is this solution good?
5 replies
BadAtCompetitionMath21420
Yesterday at 3:13 AM
BadAtCompetitionMath21420
3 hours ago
Max and min of ab+bc+ca-abc
Tiira   5
N 4 hours ago by sqing
a, b and c are three non-negative reel numbers such that a+b+c=1.
What are the extremums of
ab+bc+ca-abc
?
5 replies
Tiira
Jan 29, 2021
sqing
4 hours ago
Inequalities
sqing   12
N 4 hours ago by sqing
Let $a,b,c >2 $ and $ ab+bc+ca \leq 75.$ Show that
$$\frac{1}{a-2}+\frac{1}{b-2}+\frac{1}{c-2}\geq 1$$Let $a,b,c >2 $ and $ \frac{1}{a}+\frac{1}{b}+\frac{1}{c}\geq \frac{6}{7}.$ Show that
$$\frac{1}{a-2}+\frac{1}{b-2}+\frac{1}{c-2}\geq 2$$
12 replies
sqing
May 13, 2025
sqing
4 hours ago
2017 DMI Individual Round - Downtown Mathematics Invitational
parmenides51   14
N 5 hours ago by SomeonecoolLovesMaths
p1. Compute the smallest positive integer $x$ such that $351x$ is a perfect cube.


p2. A four digit integer is chosen at random. What is the probability all $4$ digits are distinct?


p3. If $$\frac{\sqrt{x + 1}}{\sqrt{x}}+ \frac{\sqrt{x}}{\sqrt{x + 1}} =\frac52.$$Solve for $x$.


p4. In $\vartriangle ABC$, $AB = 13$, $BC = 14$, and $AC = 15$. Let $D$ be the point on $BC$ such that $AD \perp BC$, and let $E$ be the midpoint of $AD$. If $F$ is a point such that $CDEF$ is a rectangle, compute the area of $\vartriangle AEF$.


p5. Square $ABCD$ has a sidelength of $4$. Points $P$, $Q$, $R$, and $S$ are chosen on $AB$, $BC$, $CD$, and $AD$ respectively, such that $AP$, $BQ$, $CR$, and $DS$ are length $1$. Compute the area of quadrilateral $P QRS$.


p6. A sequence $a_n$ satisfies for all integers $n$, $$a_{n+1} = 3a_n - 2a_{n-1}.$$If $a_0 = -30$ and $a_1 = -29$, compute $a_{11}$.


p7. In a class, every child has either red hair, blond hair, or black hair. All but $20$ children have black hair, all but $17$ have red hair, and all but $5$ have blond hair. How many children are there in the class?


p8. An Akash set is a set of integers that does not contain two integers such that one divides the other. Compute the minimum positive integer $n$ such that the set $\{1, 2, 3, ..., 2017\}$ can be partitioned into n Akash subsets.


PS. You should use hide for answers. Collected here.
14 replies
parmenides51
Oct 2, 2023
SomeonecoolLovesMaths
5 hours ago
p+2^p-3=n^2
tom-nowy   0
5 hours ago
Let $n$ be a natural number and $p$ be a prime number. How many different pairs $(n, p)$ satisfy the equation:
$$p + 2^p - 3 = n^2 .$$
Inspired by https://artofproblemsolving.com/community/c4h3560823
0 replies
tom-nowy
5 hours ago
0 replies
Range of a function
Pscgylotti   1
N Today at 9:24 AM by Mathzeus1024
Try to get the range of function $f(x)=cosx+\sqrt{cos^{2}x-4\sqrt{2}cosx+4sinx+9}$ :
1 reply
Pscgylotti
Jul 22, 2019
Mathzeus1024
Today at 9:24 AM
Inequalities
sqing   17
N Today at 9:05 AM by sqing
Let $ a,b,c>0 , a+b+c +abc=4$. Prove that
$$ \frac {a}{a^2+2}+\frac {b}{b^2+2}+\frac {c}{c^2+2} \leq 1$$Let $ a,b,c>0 , ab+bc+ca+abc=4$. Prove that
$$ \frac {a}{a^2+2}+\frac {b}{b^2+2}+\frac {c}{c^2+2} \leq 1$$
17 replies
sqing
May 15, 2025
sqing
Today at 9:05 AM
Calculate the function
Arkham   1
N Today at 9:03 AM by Mathzeus1024
Consider $ y = f (x) = \arcsin (- \sqrt {1 + 10x}) $, $ x \in [-1 / 10,0] $. Calculate the function where $ g $ is the inverse function of $ f $

Note: $ g (y) = f ^ {- 1} (y) $]
1 reply
Arkham
Apr 29, 2021
Mathzeus1024
Today at 9:03 AM
Incircle concurrency
niwobin   3
N Today at 8:37 AM by sunken rock
Triangle ABC with incenter I, incircle is tangent to BC, AC, and AB at D, E and F respectively.
DT is a diameter for the incircle, and AT meets the incircle again at point H.
Let DH and EF intersect at point J. Prove: AJ//BC.
3 replies
niwobin
May 11, 2025
sunken rock
Today at 8:37 AM
Python exit() module decriptions appear as "undefined"
SoaringHigh   16
N May 7, 2025 by LostInBali
Summary of the problem: When using exit() (or quit()) in the Python windows on AoPS the "Description" and "To fix" options show up as "undefined"
sample program
Page URL: N/A
Steps to reproduce:
1. Use the AoPS Python module to execute the exit() or quit() functions in a program. (try running the sample program)
Expected behavior: The "Description" and "To fix" sections give a description of SystemExit
Frequency: Always
Operating system(s): Windows 11 Home
Browser(s), including version: Microsoft Edge 130.0.2849.46
Additional information: N/A
16 replies
SoaringHigh
Oct 22, 2024
LostInBali
May 7, 2025
Python exit() module decriptions appear as "undefined"
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SoaringHigh
285 posts
#1 • 3 Y
Y by Yrock, Exponent11, PikaPika999
Summary of the problem: When using exit() (or quit()) in the Python windows on AoPS the "Description" and "To fix" options show up as "undefined"
sample program
Page URL: N/A
Steps to reproduce:
1. Use the AoPS Python module to execute the exit() or quit() functions in a program. (try running the sample program)
Expected behavior: The "Description" and "To fix" sections give a description of SystemExit
Frequency: Always
Operating system(s): Windows 11 Home
Browser(s), including version: Microsoft Edge 130.0.2849.46
Additional information: N/A
Attachments:
This post has been edited 2 times. Last edited by SoaringHigh, Oct 22, 2024, 2:11 PM
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Demetri
1376 posts
#2 • 1 Y
Y by PikaPika999
No the "Expected behavior:" is for what you think should happen instead of this error. Also why is this a bug of any kind???
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SoaringHigh
285 posts
#3 • 1 Y
Y by PikaPika999
how did you get here?

also I would assume they were supposed to describe every error cause, SystemExit likely being one of them that should be included
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Demetri
1376 posts
#4
Y by
how did you get here?

also I would assume they were supposed to describe every error cause, SystemExit likely being one of them that should be included
You can have a system.exit error for anything. So how should you describe it in the description/To fix.
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bpan2021
2654 posts
#5
Y by
There should not be a Description and To Fix in a system exit. Or the description should simply be about what the system exit does.
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SoaringHigh
285 posts
#6
Y by
There should not be a Description and To Fix in a system exit. Or the description should simply be about what the system exit does.

YES
EXACTLY
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bpan2021
2654 posts
#7
Y by
Another instance of "Description" and "To Fix" having nothing in them:
https://cdn.aops.com/images/c/7/c/c7ce05798fb071580058ac6e85169704b1f0630b.png
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SoaringHigh
285 posts
#8
Y by
there's more?

well now we can infer that that might not have been intentional lol
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Major_Monogram
517 posts
#9
Y by
  1. exit("Goodbye world")


Just reproduced.
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Major_Monogram
517 posts
#10
Y by
did it again
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Craftybutterfly
522 posts
#11 • 1 Y
Y by engineer48
It runs perfectly on visual studio code
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bpan2021
2654 posts
#12
Y by
The problem is not with VS Code. It's with the AoPS Python widget.
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SoaringHigh
285 posts
#13
Y by
yep, javascript probably weird
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LostInBali
1944 posts
#14
Y by
SoaringHigh wrote:
yep, javascript probably weird

More like AoPS python is weird.
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SoaringHigh
285 posts
#15
Y by
yes, the python module is made in javascript
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Craftybutterfly
522 posts
#16
Y by
The AoPS python window is sometimes not that reliable but it is pretty reliable unless it comes to downloading large files.
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LostInBali
1944 posts
#17
Y by
SoaringHigh wrote:
yes, the python module is made in javascript

AoPS Python is made in JS, correct.
But, AoPS Python is a program made in JS, so it does not make much sense to move the remark upstream, in my personal opinion.
:shrug:
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