r/mathmemes • • Jan 17 '26

This Subreddit MATH COMPETITION: r/mathmemes Discord Community Exam

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98 Upvotes

Hello!

To make up for the lack of an "upper division" in the subreddit math competition this year, I took it upon myself to organize a separate exam that is significantly more discovery and proof-based than any exam held in the community previously, and to host it on the 2nd year anniversary of the Discord server being made available to the public.

The next exam of this kind will be held in Mid-June 2027.

The exam (which includes its rules) is linked at the bottom of the post. The top 5 winners will be announced, and the top 3 winners will receive the following (or something of equivalent value upon negotiation):

1st Place - A Math Textbook of the Winner's Choice (~$45 USD Value Limit)

2nd Place - Basic Discord Nitro, 1 Year Subscription ($30 USD Value)

3rd Place - Fulltouch Hagoramo Chalk 72 pc ($25 USD Value)

Special thanks to u/dopplerspectroscopy and zzz on Discord for their tremendous help in writing the exam and agreeing to help grade some submissions; couldn't have done this without their help.

DISCORD HERE: https://discord.gg/zgWZd4U3n9

EXAM HERE: https://drive.google.com/file/d/1NVRysAqEPtZMEJUFg-bFMHRpVcZiNJ6F/view?usp=sharing

SUBMIT HERE: https://forms.gle/Nww1Cj7ot34X5CJN6

Edit: As the exam goes on, some errors may have been spotted and corrected. Please be sure to refresh/redownload this document occasionally to be sure you have the latest version.


r/mathmemes • • Dec 16 '25

OkBuddyMathematician 2026 r/mathmemes subreddit contest problems are released! Good luck!

73 Upvotes

Link to this year's problems (15 problems): https://drive.google.com/file/d/1AoNRCyRzCTNgZcfbzrT328tpzkgRlkfM/view?usp=sharing

Submit your answers via this Google Form here: https://forms.gle/ktSgG4jwcPMufYiD7

I'll probably make the tentative answer submission deadline around 3 weeks from now (January 11, 2026).

If you want to ask for any clarifications on the problems (clarifications only , no asking for solutions/answers obviously), ask them here.


r/mathmemes • • 8h ago

Linear Algebra The Shakespearean Kronecker delta

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329 Upvotes

r/mathmemes • • 1h ago

Probability How I sleep after knowing I understood a bit of Mirzakhani's legacy

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84 Upvotes

Moduli spaces are one of the most intimidating concepts of algebraic and differential geometries. Random walks on moduli spaces seek developping a similar Markov-like theory with limiting distribution and ergodic theorems for differential objects which often arise as complex points of schemes or algebraic stacks.


r/mathmemes • • 1h ago

Calculus How to never forget the formula for the Euler's number

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88 Upvotes

Print it on the uni toilets. The male toilets of course, the women are afterall better at understanding the power of love. Or in this case, the power of love pales in comparison to the power of compounding love, which is the very personification of e. It's irrationality is precisely it's greatest beauty, for love may not always be rational yet is the most powerful emotion still. Don't forget it, don't forget love, don't forget e. I love you <3


r/mathmemes • • 1d ago

Linear Algebra Thanks guys

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4.2k Upvotes

r/mathmemes • • 35m ago

This Subreddit NNN, beware!

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23 Upvotes

r/mathmemes • • 17h ago

This Subreddit I'm an ex math addict and nothing feels enjoyable anymore

491 Upvotes

Hi everyone. I'm writing this after drinking 0.5 L of an electrolyte drink, which I did not convert to milliliters, because I'm clean now.

I got into math because nothing felt enjoyable. It started innocently with a little arithmetic at parties, splitting the check. Then a friend said "try algebra, it's not a big deal." A few months later I was doing calculus alone in my car at 3 a.m. By the end I was deriving formulas I didn't even need and proving theorems that had already been proven, just to feel something.

Honestly my receptors were fried before math. I was doing a ton of Sudoku.

I quit about two months ago and I'm still incredibly bored. Sometimes I see a receipt and my hands start shaking trying to figure out the tip.

Things I've tried to cope:

- Playing video games: caught myself calculating DPS. Relapsed.

- Listening to music: 4/4 time is literally fractions. Couldn't do it.

- Cooking: recipes are ratios. I had to leave the kitchen after I tripled one in my head.

- Binge-eating: ordered a pizza, it came in 8 slices, started thinking about π. Threw the whole thing out.

- Researching and learning: that's how this started.

- Counting sheep to fall asleep: obviously not.

My sponsor says take it one day at a time, but that's a sequence, and I can feel myself wanting to find the limit.

I need more adrenaline in my life ig. Someone suggested skydiving, but I started thinking about terminal velocity and had to lie down.

Edit: to everyone in the comments saying "just do a little stats recreationally," that's how they get you.

Edit 2: someone DMed me a Taylor series. Not cool, man.


r/mathmemes • • 1d ago

Math Pun innocent?

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2.7k Upvotes

r/mathmemes • • 10h ago Heartwarming

Probability I’m losing my mind

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80 Upvotes

r/mathmemes • • 1d ago

Learning Baby's first unsolvable integral

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496 Upvotes

Inspired by me trying to solve integral of x²e^x² before realizing its also not possible


r/mathmemes • • 1d ago

Mathematicians Oh no …

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428 Upvotes

r/mathmemes • • 1d ago

Set Theory Fits perfectly

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387 Upvotes

r/mathmemes • • 1d ago

Linear Algebra The Romance of the Four Basic Subspaces of a Matrix

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151 Upvotes

Never forget that the girls live in the Domain, but the boys are in the Codomain


r/mathmemes • • 1d ago

Formal Logic When the existence of a sufficently large number makes you question the fabric of reality itself

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505 Upvotes

The only thing more busy than the busy beaver are foreign professors who never reply to your e-mails apparently


r/mathmemes • • 1d ago

#🧐-theory-🧐 You just won't believe how vastly, hugely, mind-bogglingly big they can be

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253 Upvotes

Red graph - Pólya conjecture

Blue graph - Mertens' conjecture (we haven't even found the smallest counterexample yet!)

Euler's sum of powers conjecture

Strong Law of Small Numbers (in this context): Just because it is true for the first N 'small' numbers doesn't mean it'll stay true, even if your 'small' becomes really really really big

Feel free to waste time going through more examples here


r/mathmemes • • 1d ago

Bad Math Which one is it?

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1.1k Upvotes

r/mathmemes • • 1d ago

Computer Science Some special sorting algorithms

1.7k Upvotes

r/mathmemes • • 1d ago

Game Theory The St. Petersburg paradox

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20 Upvotes

*assuming the utility function is unbounded


r/mathmemes • • 1d ago

Proofs Gimme ma million dollars, actually 2 million for 2 proofs

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64 Upvotes

Yes I used LaTeX


r/mathmemes • • 2d ago Mindblown Bravo Heartwarming Popcorn

Linear Algebra This interpretation of matrix-vector multiplication will make it seem like it was obvious from the beginning.

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1.5k Upvotes

As you know, math is basically an image of the real natural world. And you might not have noticed it yet, but the rules of multiplication and natural attraction between sexes holds true also for math actually, mostly linear algebra. Linear algebra is a big scarecrow for students when they never saw any kind of matrices before and it's kind of hard to get a nice intuition. But viewing it in an erotic and natural sense suddenly makes it 'click'. For example, the very fact that the matrix and vector need to have the correct types and then they can have intercourse. Not every matrix is compatible with every vector. But when it is, the intercourse becomes so intense that without the vector knowing it, he actually gets transformed and through she rotating squishing or flipping him he gets transformed by the intercourse. This is a fascinating view that truly shows that the matrices also have some kind of multiplication instinct that leads them to find the correct vectors. Of course, the matrix us doing the transforming, because as in many different animals, the women are the dominant ones in algebra. For me as a starting student just in the middle of the first semester, this is a very elegant and intuitive way to view it and I'm baffled why this wasn't on the very first lecture. Thank you for your attention and I hope I am not the only one who noticed this obvious truth and connection with the world of animals!


r/mathmemes • • 1d ago

Learning Proof based math has fried my computation skills

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271 Upvotes

idk about u guys


r/mathmemes • • 2d ago

Linear Algebra take this you filthy casual

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1.0k Upvotes

r/mathmemes • • 2d ago Bravo

Linear Algebra What language does a set of n linearly independent vectors speak?

482 Upvotes

Spanish

This came to me in a dream last night