dxbydt

95 ms·

811.
by dxbydt 15y ago
> without lying, cheating, or backstabbing...not have to mislead people, or break your promises. From my time in the valley, I'd say dishonesty, misleading clients, breaking promises, not delivering on time, all of that is very much a p
812.
by dxbydt 15y ago
>> rather than applicable to your particular field. No, I'm saying Hefferon is not applicable to any field. He eschews application in favor of formal theorem proving in vector spaces, in isolation of any real-life examples. That is
813.
by dxbydt 15y ago
Ok, so Hefferon was my textbook for 2 full semesters. Lots of problems with this book. Hefferon is an algebraist, so the computational aspect of linear algebra ie. the stuff you are most likely to use linalg for at your workplace, has been
814.
by dxbydt 15y ago
How much time do you have ? You can easily spend several years and get multiple PhDs in linear algebra, but if you only have half an hour to devote to this, I strongly suggest Leduc's Cliff Notes. http://www.amazon.com/Linear-Algebra-Cliff
815.
by dxbydt 15y ago
He says 501 companies had the idea of the IC engine, all but 1 ( ie. Ford ) died. Ok. But its not the idea being overrated that killed 500 and kept 1 alive, cause they all had the same idea to begin with. What killed the rest was - compet
816.
by dxbydt 15y ago
On your website it says "If you have an interesting project to propose to us then we’d love to hear from you." Is that still the case, or are you guys swamped at the moment ? If you are still accepting new projects, would you perhaps go int
817.
by dxbydt 15y ago
The notion of a^n definitely belongs to group theory, whether you call that n an exponent or an annihilator or a period is a matter of some contention. See: http://mathoverflow.net/questions/44393/notation-exponent-of... http://mathoverf
818.
by dxbydt 15y ago
> it helps to have an understanding of the mechanics My claim is the exact opposite. I claim you don't need to understand the mechanics ( just blindly abide by the rules of the group or abelian group or finite simple group or whatever),
819.
by dxbydt 15y ago
>the most compelling part of the talk was his interpretation of the purpose for doing math Exactly. Except that he misinterprets that very purpose. He assumes the purpose is entirely utilitarian. He implicitly says math should be about
820.
by dxbydt 15y ago
>most of us don't have a good conceptual model for what exponents really do Instead of matching math to real world objects (1= one banana, 2 = two bananas, 1+2 = 3 bananas etc. ) and building up to exponentiation, multiplication etc. th
821.
by dxbydt 15y ago
Try these for size ( actual interview questions ) PITA interviewer > What's bigger, e^pi or pi^e ? If you get past that one, PITA interviewer > What's i^1 ? Clever student> Its just 1 unit on the imaginary axis. PITA interviewer
822.
by dxbydt 15y ago
Thanks for the link. I just finished listening to the talk in its entirety. I would love to know what you thought about the actual content of the talk ( ie. not the presentation skills...Conrad Wolfram is charismatic and his analogies are c
823.
by dxbydt 15y ago
It is cool that you snow-shoveled at 12 and held a "real" job in a pizza parlor at 14. However, this is simply not the experience of the vast majority of non-Americans, especially people from India, China & the like. The OP got an engg
824.
by dxbydt 15y ago
Largely disagree. The stock market indices have always been highly correlated with the tech sector. http://chart.finance.yahoo.com/z?s=XLK&t=5y&q=l&... The actual asset correlation between the tech sector ( say the XLF spider
825.
by dxbydt 15y ago
There's a beautiful, beautifully argued book by Martin Gardner ( http://www.amazon.com/Whys-Philosophical-Scrivener-Martin-Ga... ). There are 2 chapters on economics in that book, one on free market capitalism ( "why i'm not a smithian" )
826.
by dxbydt 15y ago
a bit rusty, but think this one's right too ( am using Peirce's arrow instead of Sheffer stroke ) type LogicGate = | ON | OFF | NOR of LogicGate * LogicGate | NOT of LogicGate | AND of LogicGate * L
827.
by dxbydt 15y ago
>sometimes I think the world is awash in incompetence. We see so much of it in tech because our incompetencies are (marginally) harder to hide. A very candid Philip Greenspun in Founders@Work( p341-2) : "In aviation, by the time someone
828.
by dxbydt 15y ago
Thanks! My finance buddies in IB/PE like to say that finance is the only portion of econ that actually works. The braindead portion = econ minus finance, is only good for academia, a shot at the Nobel and a job at the treasury :) I actuall
829.
by dxbydt 15y ago
I submitted the same Java code 3 times. Compiled ok only on the third time since I poked around a bit and found I have to call my class "Solution" in order to pass compilation! The guy in the live chat said he'll change my # of submissions
830.
by dxbydt 15y ago
>what's happening in the United States now, I think it's crucial to have a good understanding of the economy I aver its not crucial to understand economics. It is crucial to understand finance. This view was hammered into us repeatedly
831.
by dxbydt 15y ago
>5) The Thiel hypothesis: Recent technological developments are intrinsically more boring than past technological developments; Shouldn't that be the Cuban hypothesis ? Cuban in 2006 http://blogmaverick.com/2006/07/12/the-internet-is-o
832.
by dxbydt 15y ago
> we've been through this many times before 'past predicts future' is not exactly commensurate with a point of inflection. perhaps a real-life example can help - a medical transcription firm in India hires 25 Indians to transcribe medic
833.
by dxbydt 15y ago
>But why now, when it hasn't in the past? One might well ask, why not now ? Given a(t) t, where a(t) = rate of new jobs created per year -b(t) t, where -b(t) = jobs lost due to technology per year Problem is, the function a(t) is stable
834.
by dxbydt 15y ago
>The people opposite the table from you want you to succeed. >All you have to do is not disqualify yourself by being stupid or obnoxious. I dunno, man. I graduated last month. 9 interviews in the last 2 months. Finally landed a job,
835.
by dxbydt 15y ago
Well done! Could you elaborate on how you came up with 5546 ? Perhaps there's a simpler technique than the one I describe below. btw, this was the technique that I learnt in school - 1. You have 12 months. Ignore February. Then you have 11.
836.
by dxbydt 15y ago
"- He has skipped meals" Recently watched a BBC documentary on truck drivers in USA. Apparently majority of truck drivers are constipated. They prefer to eat stuff they can hold in one hand while driving with the other - like beef jerky, ch
837.
by dxbydt 15y ago
0. http://www.quantnet.com/quantnet-best-selling-books-2010/ ( you must start here ) 1. http://finmath.uchicago.edu/new/msfm/prospective/plan_readin... ( i graduated last month from this pgm. if you have 50K$ and 9 months to spare, its n
838.
by dxbydt 15y ago
"I just upvoted your old post. :-)" Thank you! "many who see the code would get confused" I honestly don't think we should dispel confusion by dumbing things down to the point where all discrete math is squeezed out of the CS curriculum and
839.
by dxbydt 15y ago
Coincidentally, I was thinking of what Knuth said just last week, when one of my comments was downvoted into obscurity for promoting a supposedly obscure/contrived math formula over a lame switch-case :) http://news.ycombinator.com/item?id
840.
by dxbydt 15y ago
"you're mistaking the insurance with risk swap contracts, options" No I'm not. btw i trade options & risk swaps for a living, so I had a good laugh reading your mini tutorial on "this is called option, that is called CDS" :) Anyways, th

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