stiff

52 ms·

391.
by stiff 13y ago
Spot the error or shut up. If Ramajuan would write a paper himself he could only cite some rather obscure mathematical encyclopedia, he still uncovered wide areas of mathematics unknown to his contemporaries. There might be one Ramajuan for
392.
by stiff 13y ago
Hear you can hear the man himself speak (RealPlayer and a lengthy boring introduction though, not for the impatient) http://www.fields.utoronto.ca/audio/01-02/CRM-Fields/tutte/
393.
by stiff 13y ago
Somewhat surprisingly most web developers I know know very little SQL, having picked it up exclusively by tinkering to get things done any way whatsoever, even if clumsy or slow. In fact SQL might look deceptively simple at times, at one po
394.
by stiff 13y ago
http://en.wikipedia.org/wiki/Asymptotically_optimal_algorith... Sometimes vague or implicit assumptions can make it unclear whether an algorithm is asymptotically optimal. For example, a lower bound theorem might assume a particular abst
395.
by stiff 13y ago
This has nothing to do with simply having a "fast computer", it would be all fine if we just used 486s clocked at 10Ghz, but we don't, the changes in the architecture of CPUs do indeed make the theoretical model more diverged from reality,
396.
by stiff 13y ago
I don't understand all the hate about the post, one of the referenced articles is actually very good and gives a quite compelling case (maybe it should have been submitted instead): http://kjellkod.wordpress.com/2012/02/25/why-you-should-n
397.
by stiff 13y ago
I don't see any place in the article where they say that Weil was the first to form a connection between numbers and geometry. The only thing close they say: Weil suggested that sentences written in the language of number theory could be t
398.
by stiff 13y ago
From the Wikipedia page: He gave lectures on category theory in the forests surrounding Hanoi while the city was being bombed, to protest against the Vietnam War (The Life and Work of Alexander Grothendieck, American Mathematical Monthly,
399.
by stiff 13y ago
This sounds very misleading, Riemann was no lesser genius than Einstein, what in the end became this mentioned lecture was certainly not done in a "lazy afternoon" and in fact the paper of his based on this lecture started a major revolutio
400.
by stiff 13y ago
He says this about SymPy...
401.
by stiff 13y ago
Hey, why have compilers, if you can just write hand-optimized assembly yourself! Compilers aren't able to do similar optimizations, first of all the flow of data that finally leads to some computation might be non-trivial and I think most c
402.
by stiff 13y ago
Actually, it's a pretty interesting idea. He basically wants to keep track of the last n operations with every given number and take advantage of this history to try to minimize the floating point error. To compare 2.2 with exp(6.5) or anyt
403.
by stiff 13y ago
It's just ONE example, and if it's really the most interesting thing HN has to say on this (it was the top comment when I responded) then it's truly a sad state of affairs. Those btw are as much tutorials as they are "nice implementations",
404.
by stiff 13y ago
Euclid's Algorithm is certainly Algorithms 101, his discussion of it - far from it: http://www.keithschwarz.com/interesting/code/?dir=euclid
405.
by stiff 13y ago
Wow, what a sad place has HN become that this kind of comment is getting upvoted. There are tons of interesting stuff in there, very exhaustively commented, and you say " some are interesting, lots are mundane" quoting a single goddamn
406.
by stiff 13y ago
Wow, that's some nontrivial Ruby, some explanation of this code would be nice, I program in Ruby for some 6 years now and I still had to do a lot of head-scratching to more or less figure this out. I had no idea Ruby allows overloading of p
407.
by stiff 13y ago
He died...
408.
by stiff 13y ago
If I would see any purpose in striving for this level of separation I would use the DataMapper pattern ( http://martinfowler.com/eaaCatalog/dataMapper.html ), but I do not see it, so the Player etc. models would probably be ActiveRecords.
409.
by stiff 13y ago
I don't get it at all. Here is the whole thing in straightforward 80's OOP: post '/join/?' do game_server = GameServer.instance if game_server.join(params[:name], @account.id) flash[:notice] = "You have joined the game."
410.
by stiff 13y ago
This must be the Ruby equivalent of the once prevalent Java pattern craze, I mean what the hell is the purpose of a class like this: class JoiningError < Struct.new(:message) def effect(caller) caller.joining_error(self)
411.
by stiff 13y ago
There is a lovely description of the classic Thompson algorithm of building an NFA from a regular expression and then simulating the NFA with a DFA using two stacks :) in the "Compilers" book by Aho et al. There is also a great article from
412.
by stiff 13y ago
Wow, just one version beyond the most current one, this sucks so much, especially combined with the rather careless attitude about backwards compatibilty...
413.
by stiff 13y ago
Universities are communities of people from very different sub-disciplines, with every person considering their own sub-discipline or course the most important one, and as a result the curriculum is diluted and hurried to please the greates
414.
by stiff 13y ago
Various kinds of Markov models are pretty interesting and have many interesting applications that are not too complicated, it's a pity this particular example is being done to death, since it doesn't give much insight into the topic. Shanno
415.
by stiff 13y ago
The idea of describing a build in XML is so ridiculous only Java people could have invented it, "why I don't like Maven" is hardly interesting, "why the hell would anyone like Maven" is a good question. If you remember Linus Torvalds descri
416.
by stiff 14y ago
I will give you an example: ask a religious person you know in a completely neutral context where are memories stored and what would happen to a person after suffering severe head trauma. He or she will I guess not have any problems respond
417.
by stiff 14y ago
Unfortunately so-called "common sense" lags a few hundred years behind scientific understanding and most people for most of their lifes still think of themselves as a Cartesian spirit "trapped" in a body, at least until serious disease occu
418.
by stiff 14y ago
He has a blog: http://www.manfightdragon.com You can see a video from there with some actual code: http://www.youtube.com/watch?v=y2nBge7wq6c It actually doesn't seem that bad of an environment, which is a reminder that we haven't gotte
419.
by stiff 14y ago
Github succeeded because they have build a fantastic platform, order of magnitude smoother, better looking, easier to use and faster than any of the similar projects. Try to navigate http://sourceforge.net/ or http://code.google.com/intl
420.
by stiff 14y ago
This got popularized by Malcolm Gladwells "Outliers" and is based on a study by K. Anders Ericsson: http://en.wikipedia.org/wiki/Outliers_%28book%29#Synopsis http://en.wikipedia.org/wiki/Anders_Ericsson

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