F.A.Q
Q: buT cAN iT rUn dOOm?
A: It can't really "run" anything, its a number.
Q: Is it fast?
A: Define "fast". If you mean "faster than copying Euclid by hand", then yes, dramatically.
Q: Why did you make this?
A: I wanted arbitrary precision arithmetic, but I also wanted to feel something.
I can relate. Expecially the 3rd one.
0x0mer 1 days ago [-]
Haha thank you! I'm glad to hear!
alex_dev42 1 days ago [-]
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0x0mer 1 days ago [-]
Thank you very much! :)
Muhammad523 1 days ago [-]
What a beutiful AI-slop comment!
cindyllm 1 days ago [-]
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rablackburn 1 days ago [-]
Fantastic comedic writing (and project, of course). It had me guffawing.
To add my own "most relatable" quote to this thread:
> As always, please save any important work before running anything I ever write.
:')
But really I just want to add to the cacophony of appreciation in this thread :)
0x0mer, I hope you feel the love from this reaction and can bask in that warm inner glow for years to come.
0x0mer 1 days ago [-]
Thank you so much! I'm really happy you could relate :)
And definitely feeling the love and the warm inner glow!!
tingletech 1 days ago [-]
Cool. I just learned of compass and straight edge calculations from this video on doubling a cube https://www.youtube.com/watch?v=96LbF8nn05c from
Ben Syversen's channel a couple of months ago
0x0mer 1 days ago [-]
Thanks for posting, means a lot! :)
I'd be happy to know how you stumbled upon it
lagrange77 1 days ago [-]
> CasNum (Compass and straightedge Number) is a library that implements arbitrary precision arithmetic using compass and straightedge constructions. Arbitrary precision arithmetic, now with 100% more Euclid. Featuring a functional modified Game Boy emulator where every ALU opcode is implemented entirely through geometric constructions.
Napoleon really was into this stuff, Mascheroni dedicated a book to him & there’s a famous anecdote that Laplace told him they expected everything from him except lessons in geometry.
https://perso.ens-lyon.fr/ghys/2021/05/17/1952/
I'd guess that CasNum would be, how do I put this? not as performant
thebeardisred 24 hours ago [-]
"Think of these as your ISA." Thank you good Sir for truly naming this in the clearest, most precise semiotics.
danilor 1 days ago [-]
This is so nice!!
I'm wondering how hard would it be to extend it to include the whole game state plus all the ROM into the plane at the same time, and have it compute the next step from that!
0x0mer 1 days ago [-]
That's a good question :)
I was wondering about this myself, it feels and probably is possible, and I have some ideas on how to do it. Though, on the one hand it would be cool if the entire GB was emulated using compass-and-straightedge, but OTOH, it would be less "pure" and a little more "forced" than just simulating the ALU, if you get what I mean.
One idea I had is trying to draw the graphics of the game using compass-and-straightedge constructions (i.e., using circles and lines to draw approximately the GB graphics)
flir 1 days ago [-]
Well that's just lovely.
0x0mer 1 days ago [-]
Thank you!
profer602 17 hours ago [-]
Interesting approach to handling large numbers without relying solely on `BigInt`. The choice of base 10^9 allows for efficient arithmetic using standard JavaScript numbers, but the real win here is probably in the reduced memory footprint for certain use cases. I'd be curious to see benchmarks against native `BigInt` across various browser engines and node versions, especially when considering the overhead of managing the digit arrays.
mtsolitary 1 days ago [-]
Tried to use it to solve a quintic equation and it didn’t work :(
0x0mer 1 days ago [-]
Sadly this feature request was denied by Abel-Ruffini :(
hwhshs 1 days ago [-]
Not completely though. Merely for almost all quintics.
ko2026 1 days ago [-]
Coolest thing I've seen in a while
Well done!
0x0mer 1 days ago [-]
Thank you! :)
george_max 1 days ago [-]
Haha, cool project and README!
0x0mer 1 days ago [-]
Thank you!
measurablefunc 1 days ago [-]
Nice job but I'd like to see it implemented w/ polynomial rings & quotients.
0x0mer 22 hours ago [-]
It is implemented with polynomial rings!
I use SageMath to find minimal polynomials and solve the constructions algebraically. The reason I say that the library is only "arbitrary precision" and not exact/symbolic is that I use approximation in order to distinguish between points. I believe the "correct" way to implement this as exact would have been to save for each number its minimal polynomial and some interval that contains it and distinguishes it from the other roots of its minimal polynomial. It shouldn't be too much work to incorporate this, maybe I will do it some day :)
The only part of the code that was written by AI is the graphics window visualizing the constructions (i.e., the points, lines and circles) and I used codex
user3939382 1 days ago [-]
Why is GitHub asking me for a login to view a public repo link? What is this LinkedIn now?
macintux 1 days ago [-]
That's strange. I just tested in a private tab (Safari) and wasn't asked to log in. Hopefully this isn't some A/B testing fiendishness.
hedora 1 days ago [-]
A while back, they started aggressively rate limiting non-logged-in users.
I rarely login, because I don’t want to be a supply chain attack vector, but I guess that’s bad for someone’s promotion metrics.
Anyway, don’t host documentation there, and if you do, put it on one big page. If I read two paragraphs, think, then read the next page and so on, it bans me after about 5 clicks.
Them A/B testing “make it all private” would disappoint me, but not surprise me.
1 days ago [-]
typon 1 days ago [-]
Like an oasis in a desert of LLM slop. Thanks I enjoyed this README
0x0mer 1 days ago [-]
Happy to hear! :)
shablulman 1 days ago [-]
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tsoukiory 1 days ago [-]
[flagged]
Rendered at 06:27:39 GMT+0000 (Coordinated Universal Time) with Vercel.
To add my own "most relatable" quote to this thread:
> As always, please save any important work before running anything I ever write.
:')
But really I just want to add to the cacophony of appreciation in this thread :)
0x0mer, I hope you feel the love from this reaction and can bask in that warm inner glow for years to come.
And definitely feeling the love and the warm inner glow!!
Awesome :D
I'm wondering how hard would it be to extend it to include the whole game state plus all the ROM into the plane at the same time, and have it compute the next step from that!
I was wondering about this myself, it feels and probably is possible, and I have some ideas on how to do it. Though, on the one hand it would be cool if the entire GB was emulated using compass-and-straightedge, but OTOH, it would be less "pure" and a little more "forced" than just simulating the ALU, if you get what I mean.
One idea I had is trying to draw the graphics of the game using compass-and-straightedge constructions (i.e., using circles and lines to draw approximately the GB graphics)
I use SageMath to find minimal polynomials and solve the constructions algebraically. The reason I say that the library is only "arbitrary precision" and not exact/symbolic is that I use approximation in order to distinguish between points. I believe the "correct" way to implement this as exact would have been to save for each number its minimal polynomial and some interval that contains it and distinguishes it from the other roots of its minimal polynomial. It shouldn't be too much work to incorporate this, maybe I will do it some day :)
I rarely login, because I don’t want to be a supply chain attack vector, but I guess that’s bad for someone’s promotion metrics.
Anyway, don’t host documentation there, and if you do, put it on one big page. If I read two paragraphs, think, then read the next page and so on, it bans me after about 5 clicks.
Them A/B testing “make it all private” would disappoint me, but not surprise me.