graycat

564 ms·

1. 2701.▲
   by graycat 11y ago

   Thanks! Right! I wrote "L3" but never defined an L3 . So, yes, I meant L-infinity. Sorry 'bout that! Not the first time I typed too fast! I did omit the other L^p spaces.
2. 2702.▲
   by graycat 11y ago

   With meager assumptions and a standard set up, we are in a vector space and want a meaning of distance , that is, a vector space norm . The three norms people think of first are L1, L2, and L-infinity: L1 is from absolute values. L2 is f
3. 2703.▲
   by graycat 11y ago

   I'm not using the old Visual Basic version 6 or whatever it was -- I never did use it. And I'm not using Visual Basic script , VBS, or whatever it was -- never used it either. I'm using Visual Basic .NET which is essential
4. 2704.▲
   by graycat 11y ago

   An Internet search engine for the safe for work and legal Internet content, searches people want to do, and results they want to find where keywords/phrases work from poorly down to not at all. So my work is for a part of search se
5. 2705.▲
   by graycat 11y ago

   If I wanted a good, long term employee, then I'd hire one. If I just wanted a specific app, then I'd contact a freelance consultant or a software house for just that job and, maybe, a few revisions. For the poor employee, why t
6. 2706.▲
   by graycat 11y ago

   Lesson: Be on the hiring side of the table. That is, be an entrepreneur. As someone with some high value, tough to get paid that value as an employee; that's a very old lesson. E.g., I've been programming for decades and am doin
7. 2707.▲
   by graycat 12y ago

   Many thanks. Your post is a keeper. I've got SQL Server working now with notes on how I did it and with some simple text files with SQL commands to be run with the Microsoft SQLCMD.EXE for setting security. For the connection string,
8. 2708.▲
   by graycat 12y ago

   > basic SQL That was easy. Think of it as close to set theory! I needed to get through all the overhead stuff since I'm using SQL Server in the server farm for my startup. So, I have code for Web pages with ADO.NET and also some s
9. 2709.▲
   by graycat 12y ago

   So far my experience is that getting a SQL query correct is fairly easy and usually fun but that the real difficulty, e.g., for SQL Server, is for the rest: (1) Installation. Grim. Barbed wire enema. Wiped out my Windows boot partition req
10. 2710.▲
    by graycat 12y ago

    Solid details on the financial performance of individual VC firms is difficult to get in public. Maybe A16Z is doing well, at least in comparison , maybe like a WWII piston powered fighter plane instead of a horse but still not an SR-71.
11. 2711.▲
    by graycat 12y ago

    Please: (1) Yes, in probability, distributions are crucial concepts. (2) In practice, for random variables taking real number values, usually can't know the distribution. For random variables taking vector values of dimension over,
12. 2712.▲
    by graycat 12y ago

    The article does seem to have a good description of how Silicon Valley venture capital thinks and works. Of course, again, on average the venture firms have poor ROI: http://www.kauffman.org/newsroom/2012/07/i
13. 2713.▲
    by graycat 12y ago

    While broadly I have to agree with much of what Fred said there, I do have some qualifications. At the end Fred did mention family, etc. Here he was way too weak: A recent phrase is "The greatest prize life has to offer", and th
14. 2714.▲
    by graycat 12y ago

    Considering being an employee such as in the OP, I have two reactions: (1) Take statistics, machine learning, neural nets, artificial intelligence (AI), big data, Python, R, SPSS, SAS, SQL Server, Hadoop, etc., set them aside, and ask the
15. 2715.▲
    by graycat 12y ago

    For the set of real numbers R, positive integer n, and the Euclidean norm on R^n, there is the old R. Karp paper where he shows amazing results for: Find a minimum spanning tree and do a depth-first traversal but deleting arcs that have alr
16. 2716.▲
    by graycat 12y ago

    My take is that in the most central sense, what Nadella and Microsoft are doing with the code editor, .NET, their free IDE, etc. is following a standard, powerful, old script : If have something popular, e.g., .NET, then make it open an
17. 2717.▲
    by graycat 12y ago

    Let's have a US information technology venture partner with their "deep domain knowledge" take up my bet on finding the typo in my paper! Come on VCs! Good information technology entrepreneurs are eager for VCs who can actual
18. 2718.▲
    by graycat 12y ago

    I know some people in (1) the top of business in the US, (2) high end US research academics, and (3) information technology (IT). (A) Bluntly likely none of those people knows anyone at First Round Capital. (B) Bluntly, with the exception
19. 2719.▲
    by graycat 12y ago

    The school and the cops should just have refused to make what the boy did a police or legal matter.
20. 2720.▲
    by graycat 12y ago

    So, the boy got into the teacher's computer. Hmm .... Time to send the cops after all of the NSA, right? Or, since the NSA has shown all the world that no computers are private, the boy didn't get into anything private and did
21. 2721.▲
    by graycat 12y ago

    Not completely in jest, it sounds like maybe the dolphins thought that, clearly, those humans were idiots, not worth trying to teach or respond to!
22. 2722.▲
    by graycat 12y ago

    Let's see: (1) Fifth grade, I got a trumpet so rode the city bus downtown, 7 miles, to music lessons. (2) Once also downtown there was a movie I wanted to see so got a little extra cash and went to the movie after the music lesson. (3
23. 2723.▲
    by graycat 12y ago

    Nice. I'd go with the 2^7 and not the (3/2)^(12). > It defines a half-step as the 12th power of 2 Uh, instead, "12th root of 2".
24. 2724.▲
    by graycat 12y ago

    Sure, in the matrix product AB = C, C has the same number of rows as A and the same number of columns as B, and each column j of C is from column j of B acting as coefficients in a linear combination of all the columns of A. Next: For the
25. 2725.▲
    by graycat 12y ago

    The OP keeps talking about the tuition increases . But as far as I could tell, the OP was considering only, call it, tuition list prices . But, with scholarships, various forms of financial aid , etc., maybe often the list price is no
26. 2726.▲
    by graycat 12y ago

    The problem was challenging. The solution was exceptional. So, maybe something about the person who solved the problem might be exceptional, that is, might fail to fit some common patterns? Or, in this case, we can't call the success
27. 2727.▲
    by graycat 12y ago

    Ah, I likely shouldn't betray that confidence!
28. 2728.▲
    by graycat 12y ago

    What you mentioned looks like something quite common for linear programming software. E.g., think linear programming tableaux and appending a new constraint with its own, new artificial variable. Then do elementary row operations to zero
29. 2729.▲
    by graycat 12y ago

    As I joined FedEx, I was told that they had already worked out sensors, of some kind (I never saw details), on the landing gear that would give the data needed for knowing and controlling weight and balance . For balance , right, e.g., do
30. 2730.▲
    by graycat 12y ago

    Thanks. As elsewhere on this thread, I'm doing a startup. What I've posted to HN in this thread and otherwise is about the best I can do for now. For the history of FedEx, there are several books already. Roger Frock wrote one. I