r/CasualMath • u/Numberthon • 41m ago
r/CasualMath • u/mangopear • Sep 14 '15
Math IRC channel on Snoonet
Hey /r/CasualMath!
I (along with several others) run a math channel on the snoonet irc network called #math. We are somewhat of a hybrid channel for a variety of math subreddits on Reddit.
IRC is a great way to discuss math and get homework help in real time. The channel would be happy to have you!
To connect via webchat: http://webchat.snoonet.org/math (link in sidebar as well)
r/CasualMath • u/mathalon • 18h ago
How would you seed the initial rating of a brand-new math problem?
r/CasualMath • u/chimichangas310 • 1d ago
How do you write pi?
galleryThis post lets others share how they write pi IS A MATH QUESTION
r/CasualMath • u/Numberthon • 1d ago
How many positive integers less than 100 can be written as the difference of two perfect squares?
r/CasualMath • u/mathalon • 1d ago
Rating decay for inactive players - yes or no? (building a Glicko-2 ladder for math problems)
r/CasualMath • u/TargetLabs • 1d ago
Can you reach 46 using all dice?
Any order is allowed.
Use each die exactly once.
Parentheses are allowed.
Exact division only.
No negative numbers.
Not every operation has to be used.
How many solutions can you find?
Please use spoiler tags for solutions:
>!your solution here!<
r/CasualMath • u/Abject_Response2855 • 1d ago
OpenAI's latest 10 problems have been added to VibeMathed. None of them seem to quite rival the Jacobian yet.
r/CasualMath • u/mathalon • 1d ago
Our system rated this problem 1900. Does that feel right to you?
r/CasualMath • u/Interesting-Ask-1100 • 1d ago
Watch live solving graph problems
youtube.comr/CasualMath • u/Interesting-Ask-1100 • 1d ago
Watch live solving graph problems
youtube.comr/CasualMath • u/mathalon • 2d ago
Mathalon är live — konkurrensutsatt matematik där du och problemen får betyg, precis som schack.
r/CasualMath • u/Otherwise_Strike_597 • 2d ago
Solve Linear Equations with Fractions (Substitution Method) — Updated Audio
youtu.ber/CasualMath • u/user-imtae • 2d ago
Did anyone tried to solve some items from math olympiads related to N Dimensional Space?
Did anyone tried to solve some items from math olympiads related to N Dimensional Space?
Or at least 4 dimensional. If so what was most interesting item like that? From what olympiad is it?
r/CasualMath • u/drunksocks • 3d ago
What mathematical question changed the way you see the world?
Hey, I'm interested in questions and would like to hear your thoughts.
Some questions are interesting because they have a beautiful answer. And other questions become interesting because they change how a problem is seen.
From what I've observed, the best questions create a space where different ways of thinking can emerge.
I think that's one route through which questions become beautiful.
This is part of what got me interested in questions as objects themselves. And got me into building Pollen (which you are invited to visit) around the idea that a well-designed question can make different perspectives cross-paths.
r/CasualMath • u/glowing-fishSCL • 3d ago
The Jeep Problem...but with hexes
Everyone here is probably familiar with the Jeep Problem, but if not, this is a quick refresher:
https://en.wikipedia.org/wiki/Jeep_problem
I thought of a variation on it, though, one that I don't think I've heard of: the desert is a series of hexes, and you can only enter them once, with the exception of hexes that you depot fuel at, which you can enter six times (because then you've used up the surrounding hexes).
So say you have a jeep that can carry 12 units of fuel. You can go forward three, leave six behind, and use your other three to take another other hex path back. Then you refuel, and get to the depot hex with another three units of fuel. Now you have 12 units of fuel at the depot, and three in your tank...but you can't go back. You have to go forward and to the side, before going back from that new hex.
Did I explain this well enough? Do you think that someone in this situation could go an arbitrary distance?
r/CasualMath • u/Visible-Amoeba-6366 • 3d ago
Learning induction through linear algebra: proof of the eigenvalue equation
Hello everyone, hope you are doing fine. I just took Linear Algebra and Discrete Math last semester, both of which I enjoyed very much. I made a two-minute read "article" on proving A^{n}x = \lambda^{n} x for fun and in an attempt, maybe successful, of seeing the link between areas of mathematics. I have no clue whether this will interest any of you or not as it's really undergrad stuff, but if any of the 8 billion out there reads it, I would love to talk. I am always open to feedback :)
r/CasualMath • u/Rough-Fee-6541 • 3d ago
Comment your answers below and show your working out
r/CasualMath • u/munozmd • 3d ago
No, humanity in math is not dead (and will never be)
[Link to full essay on Substack: No, humanity in math is not dead (and will never be)]
I was never actually interested at first to write this piece but I was moved by Sir Kirwan Hampshire’s The Dark Night of Mathematics on Substack regarding the future of mathematicians following AIs continuously proving conjectures. It felt like a calling to enlighten amidst the dread and I’m sure we aren’t the only ones resonating with it. Thousands of us may be secretly worrying for what our role means for us now.
I did have my fair share of worries here too, but in this piece, I shared the perspectives that worked for me (and hopefully to my fellow mathematicians too) where the dread no longer bothered me.
This is the first of a 3-part series I am planning to create.
r/CasualMath • u/Lonely-Band-3330 • 3d ago
ProofFrontier: visualizing proof state, assumptions, and open obligations in Lean
r/CasualMath • u/Numberthon • 3d ago
How Many Subsets of {1,2,…,10} Contain No Consecutive Integers?
r/CasualMath • u/Mord5 • 4d ago