rawnlq

32 ms·

1. 271.▲
   by rawnlq 11y ago

   Thanks for actually doing the math! =) There might be a mistake with the $90k/yr leftover though. If you lose 35% of $250k/yr to tax (87.5k) and need to save $93k each year, then you should only have about $70k/yr left. This
2. 272.▲
   by rawnlq 11y ago

   Somewhat unrelated to the article, but trying to work out the math of whether becoming millionaires by the time you're in your 30s is hard or not for a pair of engineering couples in silicon valley. Assuming graduated when they are bot
3. 273.▲
   by rawnlq 11y ago

   Also see http://en.wikipedia.org/wiki/Hausdorff_dimension to see how you can have fractional dimensions
4. 274.▲
   by rawnlq 11y ago

   Digg was way more popular than reddit but more or less completely died out: http://www.google.com/trends/explore?q=reddit+digg#q=digg%2C...
5. 275.▲
   by rawnlq 11y ago

   I didn't read the whole blog series, but this data structure seems like it could support O(log(n)) insert/remove in middle or front. The equivalent operation in an ArrayList would take O(n). Why not show off this performance advan
6. 276.▲
   by rawnlq 11y ago

   What are some applications of this? If an attacker has access to memory there's not much left you can do right? Or is the use case similar to why you would want to zero out the memory used to store password strings?
7. 277.▲
   by rawnlq 11y ago

   I think you unfortunately choose a few companies that HNers love. If you had chosen tvtropes.org, television, and ad agencies as your examples then your point might be made clearer. If I am interpreting you correctly, you're saying tha
8. 278.▲
   by rawnlq 11y ago

   >“Let’s build a forty-story-high indoor replica of ancient Rome full of albino tigers in the middle of the desert, and so become slightly richer than people who didn’t!” One could argue that the value added here is the environment. Other
9. 279.▲
   by rawnlq 11y ago

   I am really impressed by wolfram alpha's ability to parse my butchered syntax: https://www.wolframalpha.com/input/?i=probability+that+gauss... Probability of finding someone with an IQ (as defined as normal distri
10. 280.▲
    by rawnlq 11y ago

    Thinking about it more I think it makes more sense to have N as the number of test takers. That way you can model it as a question x having a probability p_x of being correct. Then the total grade on problem x will be a binomial(N, p_x), wh
11. 281.▲
    by rawnlq 11y ago

    Hmm, is it still binomial if each individual question has different p of being correct? Also you will have to shift and rescale the binomial distribution to get it to have a mean of 100 and a std dev of 15 (which iq is defined as). But you
12. 282.▲
    by rawnlq 11y ago

    Can someone with more stats background explain how to invoke the central limit theorem to see that intelligence should be distributed as a bell curve? What are the independent and identically distributed random variables that are being aver
13. 283.▲
    by rawnlq 11y ago

    A different domain can't possibly access the local storage for grooveshark.com right?
14. 284.▲
    by rawnlq 11y ago

    I would pay money to get my playlists which I painstakingly curated back. (They weren't on http://groovebackup.com. ) And I thought I would learn after I lost a bunch of stuff when megaupload got shut down...
15. 285.▲
    by rawnlq 11y ago

    I agree it is going to expensive but it's not because of memory. You could probably just try every (x,y) center and have all points vote for the radius, and just keep max before moving on to next point.
16. 286.▲
    by rawnlq 11y ago

    This is another c++ library which (I think?) is pretty similar: http://ldionne.com/hana/index.html http://ldionne.com/hana/group__group-concepts.html
17. 287.▲
    by rawnlq 11y ago

    Doesn't look like all the virtual functions he's using could be inlined, so no?
18. 288.▲
    by rawnlq 12y ago

    He does a year-in-review blog post every year where he publishes his financials publicly. They are very informative. http://www.kalzumeus.com/2014/12/22/kalzumeus-software-year-... http://www.kalzu
19. 289.▲
    by rawnlq 12y ago

    To add another datapoint, I remember using numericjs a few months ago and the parts I used were pretty buggy (iirc singular value decomposition for nonsquare matrices didn't work). It is also oddly missing common stuff like cross produ
20. 290.▲
    by rawnlq 12y ago

    Hypothetically, if another "U.S." company with higher economical consequences got cyberattacked, would it be considered an act of war? For example if Facebook got shutdown for a few days/weeks. Or does it have to be military&
21. 291.▲
    by rawnlq 12y ago

    Thought it would be cool to check out what some of the other language inventors were/are doing: Guido van Rossum (Python) - Google, Dropbox Rasmus Lerdorf (PHP) - WePay, Etsy, Jelastic Yukihiro Matsumoto (Ruby) - Heroku
22. 292.▲
    by rawnlq 12y ago

    http://13thlab.com who got acquired by Oculus made something very very similar: https://www.youtube.com/watch?v=rA2NI4NgsV0&t=19 so the technology for doing this is feasible and real. Their previous kickstar
23. 293.▲
    by rawnlq 12y ago

    Standard name for this type of linked list is the "intrusive linked list". There's an implementation for it in boost for c++ and here's another article about it: http://www.codeofhonor.com/blog/avoid
24. 294.▲
    by rawnlq 12y ago

    Just pointing out that P2P backup is a well understood problem (in industry and academia) and they should probably partner with people who do this stuff seriously or at least base their design on existing solutions. For example their implem
25. 295.▲
    by rawnlq 12y ago

    Shouldn't there already be a lot of existing tech for doing crowd backup/sync? Quick googling yields at least a few companies which allow you to donate unused hard drive space in exchange for benefits: Symform: http://w
26. 296.▲
    by rawnlq 12y ago

    If we accept the exponential waiting time model, then another term for this phenomenon is Poisson clumping: http://en.wikipedia.org/wiki/Poisson_clumping . I think one intuitive way to explain it is if you're flipp
27. 297.▲
    by rawnlq 12y ago

    Previous (successful) attempts at reverse engineering: https://www.usenix.org/conference/woot13/workshop-program/pr...
28. 298.▲
    by rawnlq 12y ago

    Have you heard of sharejs http://sharejs.org/ ? It's made by an ex-Google-wave engineer and uses operational transforms for eventual consistency. It seems like you guys are solving similar problems. I mention this becau
29. 299.▲
    by rawnlq 12y ago

    A slower O(nlog(n)) but IMO much simpler algorithm is to just using a rolling hash[1]. With linear time precomputation you can compute the hash of any substring range in constant time. Then for each position, you can just binary search for
30. 300.▲
    by rawnlq 12y ago

    Here's a few more members from the top 10: http://community.topcoder.com/tc?module=MemberProfile&cr=198... http://community.topcoder.com/tc?module=MemberProfile&cr=227... http://comm