hyh1048576
Joined 14 years ago
Karma
218
Submissions
93
Member since
Aug 27
Recent submissions
Comment · 2 years ago
Maybe it's mentioned somewhere but I missed it, could someone provide a list of the five problems that AlphaGeometry failed to solve? The paper mentioned IMO 2008p6 and IMO 2019p2. What are the other three?
Comment · 3 years ago
Yep. Imagine doing multiplication in Roman numerals :)
Comment · 3 years ago
If you want to see how some very simple notations greatly simplifies some math, check out J. H. Conway's proof of Morley's theorem.
Background: Morley's theorem is a non-trivial theorem in planar euclidean geometry stated in 1899 (first proof appeared 15 years later). The proofs are not easy. One can use complicated trignometry identities to prove it. Even the "simple" proofs are sometimes quite involved.
Conway introduced some notation and almost trivialized it. The notation he introduced was just a* := a + 60 where a is the degree of an angle. No one would believe this notation can do anything good, but with them (and some other insight) Conway can explain the proof in just a few sentences! (One might think anyone who understand that the interior angles of a triangle will always have a sum of 180° can come up with this simple proof, but that just didn't happen for 100 years until Conway revealed it.)
See page 3-6 here: http://thewe.net/math/conway.pdf
Comment · 6 years ago
Is it brand based, or product based? In the URL I see /brand/ and /product/.
I have trouble finding reliable floor lamp like [this](https://i5.walmartimages.com/asr/c38e8535-2ee2-477d-9e9a-836...). The base is almost always coming off after using for a few years so the whole thing is unstable.
Comment · 6 years ago
I agree.
But "min(-, constant_x)" should be thought of as "at most constant_x" and similarly for max. Maybe there's a way to make it more expressive.
Comment · 6 years ago
I really hope Chinese start to use this as YouTube is being blocked by the Government.
Comment · 7 years ago
Chinese here. To be a little picky, phonetics is just one of the several methods to input Chinese. (Pinyin is the dominant one, and yes it is phonetics, other ways uses shapes of the characters and maybe a lot faster, see https://en.wikipedia.org/wiki/Wubi_method for example.)
Speaking of input methods I always with there are good English input methods, it will be useful too! For example if user enters "compre" the input methods goes 1. comprehension 2. comprehensive (with an order depending on the conditional probability -- there is some interesting math behind input prediction, and with their help input can be a lot smooth, however I only see it used on phones not computers.)
Comment · 7 years ago
I tried several times to use Firefox as my default browser, but eventually I switched back to Chrome, due to some weird issues I got at some sites.
I still hate what Google is doing for Chrome and I'm now using a dual browser strategy... I use Firefox and Chrome at the same time, with a preference to Firefox.
Comment · 7 years ago
I've noticed a lot of command line utilities are being rewritten in Rust. Is there a reason for this?
Comment · 7 years ago
Isn't that what meditation/mindfulness do for you?