pink mop through blue

by vincentwant, May 2, 2025, 3:48 AM

does there exist a corresponding pink mop cutoff for blue? it exists for red and i think green as well but idk about blue

if it exists what was the cutoff thsi year
This post has been edited 1 time. Last edited by vincentwant, Yesterday at 3:54 AM
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Math Kangaroo 2025 Thread

by FuturePanda, May 2, 2025, 3:34 AM

Are we allowed to discuss scores and problems yet? If so, we can start here.
Math Kangaroo
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Question about AMC 10

by MathNerdRabbit103, May 2, 2025, 2:53 AM

Hi,

Can anybody predict a good score that I can get on the AMC 10 this November by only being good at counting and probability, number theory, and algebra? I know some geometry because I took it in school though, but it isn’t competition math so it probably doesn’t count.

Thanks.
AMC 10
probability
geometry
AMC
AMC 10 A
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June contests?

by abbominable_sn0wman, May 2, 2025, 1:46 AM

are there any good/fun math contests in june? obviously arml, but anything else?
ARML
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Did I make the right choice?

by Martin2001, Apr 29, 2025, 1:42 PM

Loading poll details...
If you were in 8th grade, would you rather go to MOP or mc nats? I chose to study the former more and got in so was wondering if that was valid given that I'll never make mc nats.
This post has been edited 1 time. Last edited by Martin2001, Apr 29, 2025, 1:43 PM
poll
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USAMO Medals

by YauYauFilter, Apr 24, 2025, 2:47 AM

https://maa.org/wp-content/uploads/2025/04/2025-USAMO-Awardees.pdf
AMC
USA(J)MO
USAMO
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Mathcounts state

by happymoose666, Mar 24, 2025, 10:28 PM

Hi everyone,
I just have a question. I live in PA and I sadly didn't make it to nationals this year. Is PA a competitive state? I'm new into mathcounts and not sure
MATHCOUNTS
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Mathpath vs. AMSP

by FuturePanda, Jan 30, 2025, 3:15 AM

Loading poll details...
Hi everyone,

For an AIME score of 7-11, would you recommend MathPath or AMSP Level 2/3?

Thanks in advance!
Also people who have gone to them, please tell me more about the programs!
This post has been edited 1 time. Last edited by FuturePanda, Jan 30, 2025, 3:16 AM
summer program
MathPath
AIME
AIME I
poll
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2025 Math and AI 4 Girls Competition: Win Up To $1,000!!!

by audio-on, Jan 26, 2025, 1:34 AM

Join the 2025 Math and AI 4 Girls Competition for a chance to win up to $1,000!

Hey Everyone, I'm pleased to announce the dates for the 2025 MA4G Competition are set!
Applications will open on March 22nd, 2025, and they will close on April 26th, 2025 (@ 11:59pm PST).

Applicants will have one month to fill out an application with prizes for the top 50 contestants & cash prizes for the top 20 contestants (including $1,000 for the winner!). More details below!

Eligibility:
The competition is free to enter, and open to middle school female students living in the US (5th-8th grade).
Award recipients are selected based on their aptitude, activities and aspirations in STEM.

Event dates:
Applications will open on March 22nd, 2025, and they will close on April 26th, 2025 (by 11:59pm PST)
Winners will be announced on June 28, 2025 during an online award ceremony.

Application requirements:
Complete a 12 question problem set on math and computer science/AI related topics
Write 2 short essays

Prizes:
1st place: $1,000 Cash prize
2nd place: $500 Cash prize
3rd place: $300 Cash prize
4th-10th: $100 Cash prize each
11th-20th: $50 Cash prize each
Top 50 contestants: Over $50 worth of gadgets and stationary

Many thanks to our current and past sponsors and partners: Hudson River Trading, MATHCOUNTS, Hewlett Packard Enterprise, Automation Anywhere, JP Morgan Chase, D.E. Shaw, and AI4ALL.

Math and AI 4 Girls is a nonprofit organization aiming to encourage young girls to develop an interest in math and AI by taking part in STEM competitions and activities at an early age. The organization will be hosting an inaugural Math and AI 4 Girls competition to identify talent and encourage long-term planning of academic and career goals in STEM.

Contact:
mathandAI4girls@yahoo.com

For more information on the competition:
https://www.mathandai4girls.org/math-and-ai-4-girls-competition

More information on how to register will be posted on the website. If you have any questions, please ask here!
Math Competitions
middle school math contests
Middle School contests
AI
computer science
middle school math
Girls
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Problem 2

by evt917, Nov 13, 2024, 5:13 PM

What is $10! - 7! \cdot 6!$?

$ \textbf{(A) }-120 \qquad \textbf{(B) }0 \qquad \textbf{(C) }120 \qquad \textbf{(D) }600 \qquad \textbf{(E) }720 \qquad $
This post has been edited 1 time. Last edited by LauraZed, Nov 13, 2024, 5:47 PM
Reason: adding AMC 10 to source
AMC
AMC 12
AMC 10
2024 AMC 10b
2024 AMC 12B
factorial
2024 AMC
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The Mandelbrot Set

by always_correct, Jul 10, 2017, 9:40 PM

Hello!

As I have not posted in a long while, I'll post some eye candy. Context:

For those that don't know, the Mandelbrot set $\mathcal{M}$ is a set of complex numbers defined in the following manner. Consider the complex function $f_c(z) = z^2 + c$. Now for a particular $c$, consider the sequence
$${z_n} = f_c^{n}(0) = \underbrace{f(f(\ldots(0)\ldots))}_{n\text{ times}}$$If $z_n$ does not diverge, then $c \in \mathcal{M}$.

Here is an image of $\mathcal{M}$. Every white pixel represents a point in $\mathcal{M}$, while the colored pixels represent the number of iterations before it was certain the sequence would diverge.

http://i.imgur.com/Fs1MaAv.png?1

How do we know at what point a sequence will diverge?

Most importantly, here are some deep zoom images I generated. (I might share the application itself when it runs faster)
http://i.imgur.com/dItzUTv.png

http://i.imgur.com/ZGUdj96.png

http://i.imgur.com/rkfxb7J.png

http://i.imgur.com/Qvti9Ds.png

I implemented a "real-time" Mandelbrot set viewer in C++ with AMP for GPU multithreading. A major optimization(among the countless micro optimizations) I have yet to implement uses the following fact: The Mandelbrot set is simply connected. In other words, If the boundary of a square(or any other shape) is a subset $\mathcal{M}$ then the interior of that square(or any other shape) is in $\mathcal{M}$.

While the Mandelbrot set is generated by those points which do not diverge under the iteration of the complex function $f$, what set is generated by those points who converge? Surely it must be a subset of $\mathcal{M}$. The answer is...

Thanks for reading.
:)
This post has been edited 3 times. Last edited by always_correct, Jul 10, 2017, 9:42 PM
programming
complex numbers

Learn, find, and share mathematics.

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always_correct
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  • there are over 6000! anyway, I'm resting with the whole Euler line problem right now

    by always_correct, Aug 6, 2017, 8:16 PM

  • Have you seen something about Kimberling centers (triangle centers) and center lines?

    by alevini98, Aug 5, 2017, 11:19 PM

  • no its not dead

    by always_correct, Jul 12, 2017, 1:19 AM

  • Wow this is great, is this dead?

    by Ankoganit, Jul 3, 2017, 8:41 AM

  • oh its a math blog.....

    by Swimmer2222, Apr 13, 2017, 12:58 PM

  • Why is everyone shouting
    Oh wait...

    by ArsenalFC, Mar 26, 2017, 8:45 PM

  • Shout! ^^

    by DigitalDagger, Mar 4, 2017, 3:49 AM

  • 14th shout!

    by arkobanerjee, Feb 8, 2017, 2:48 AM

  • 14th shout! be more active

    by Mathisfun04, Jan 25, 2017, 9:13 PM

  • 13th shout :coolspeak:

    by Ryon123, Jan 3, 2017, 3:47 PM

  • Dang, so OP. Keep it up! :D

    by monkey8, Dec 28, 2016, 6:23 AM

  • How much time do you spend writing these posts???

    by Designerd, Dec 5, 2016, 5:02 AM

  • good blog!

    by AlgebraFC, Dec 5, 2016, 2:09 AM

  • Nice finally material for calculus people to read thanks

    by Math1331Math, Nov 27, 2016, 2:50 AM

  • Whoa how much time do you spend typing these posts?

    They're nice posts!

    by MathLearner01, Nov 24, 2016, 3:30 AM

  • i am remove it please

    by always_correct, Nov 22, 2016, 2:18 AM

  • 5th shout!

    by algebra_star1234, Nov 20, 2016, 2:41 PM

  • fourth shout >:D

    by budu, Nov 20, 2016, 4:59 AM

  • 3rd shout!

    by monkey8, Nov 20, 2016, 3:24 AM

  • 2nd shout!

    by RYang, Nov 20, 2016, 3:01 AM

  • first shout >:D

    by doitsudoitsu, Oct 9, 2016, 7:54 PM

21 shouts
Tags
calculus
complex numbers
inequalities
abel
concave
convex
ellipse
factorial
Finite Differences
Gaussian integers
geometry
homothety
Inequality
Jensen
metric spaces
modular arithmetic
primes
programming
Summation
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About Owner
  • Posts: 809
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  • Total entries: 8
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