gchpaco

35 ms·

271.
by gchpaco 17y ago
Need to play with one in person to know for sure.
272.
by gchpaco 17y ago
As flipper points out, the problem is that the hard maximum is not differentiable; that is, the differential of max (x, y) is undefined when x == y. Most numerical approximation techniques require a smooth, differentiable function, so this
273.
by gchpaco 17y ago
Acme works very well with proportional fonts, although it doesn't do relative indentation well as a result (think lining function arguments up on the left paren). Still a really brilliant editor in many ways.
274.
by gchpaco 17y ago
Yes, if you have a computer with a private key that is available to the internet, and it gets knocked over, you're dead. Just as you would be if he knocked it over and installed a keylogger and you were using passwords. Cracked is cracked
275.
by gchpaco 17y ago
When you log in to an ssh host using a public/private key pair, the server only sees the public key. So by breaking and entering the attacker can disable your ability to log in in this fashion (by deleting the key) or can enable you to log
276.
by gchpaco 17y ago
You can do that, it's not terribly difficult, just picky.
277.
by gchpaco 17y ago
a) C and C++. Oh, but they're not modern, you say; balls, I say. Both standards were revised very recently and C++ is changing quite a bit. b) SLIME and SBCL (to pick freebies) crush any of those under their collective boot. Eclipse trie
278.
by gchpaco 17y ago
I dunno. The thing that sold it for me was this assertion: Q. Look, I’m sorry if you feel put-upon here, please don’t get hostile. I’m just trying to get a clear picture of the specs I need here. Obviously if I’m going to write a
279.
Stupid Interview Questions(exold.com)
34 points by gchpaco 17y ago|23 comments
280.
by gchpaco 17y ago
I usually set those in the body text in italics or something, perhaps with the display version of the typeface if I am so fortunate. But I guess that's not the way people do it these days.
281.
by gchpaco 17y ago
Interesting that he suggests no more than three fonts; the rule when I was poking around was more like two, one for headlines (if you must) and then a good proper body font for almost everything.
282.
by gchpaco 17y ago
I cannot upvote you enough for that.
283.
by gchpaco 17y ago
That is not actually the case. It turns out there is a fundamental physical limitation on destructive computation; any irreversible operation must produce a small amount of heat. Wikipedia has more at http://en.wikipedia.org/wiki/Reversi
284.
by gchpaco 17y ago
How is it you can possibly say "simplicity of the instruction operations" and "programmed the x86 architecture in assembly extensively" with a straight face? This is the architecture where the division operator dumps its dross in one speci
285.
by gchpaco 17y ago
It's a damn sight better than "the lawmakers, their pets, and their puppetmasters get to do whatever they want whenever they want" which is the usual alternative.
286.
Shards of Lost Technology, and the Need for High-Level Architectures(loper-os.org)
34 points by gchpaco 17y ago|12 comments
287.
by gchpaco 17y ago
Those are precisely examples where even the most naive late 70s compiler can optimize out the bounds checking, as is well documented in the literature. (presuming the sizes are >= 10000, of course) All it takes is a validity range,
288.
by gchpaco 17y ago
We have been awash in buffer overflows and other, similar errors (printf strings come to mind) that are actually impossible in a safer language for years. SQL injection can happen in a safer language but you can't take over the web server
289.
by gchpaco 17y ago
Of course not—the potential downside from getting that wrong is getting eaten by a crocodile, and the potential upside is that I get to swim. I demand much more confidence from my decision making process because the risk-reward is so diffe
290.
by gchpaco 17y ago
Sample size is too small to make any real conclusions.
291.
by gchpaco 17y ago
That old saw is really about points of view, as you note. Going from C to Pascal isn't really going to teach you very much. Going from C to programming idiomatic Prolog is a huge shift, and teaches you a new way to look at things.
292.
by gchpaco 17y ago
The problem is the devil is invariably in the details. It is almost impossible to say something useful about category theory starting from even a modern undergraduate mathematics education in less than about a week, because you need to tal
293.
by gchpaco 17y ago
"But to people not already familiar with what’s going on the same patterns are not very illuminating; they are often even misleading. The language is not alive except to those who use it." struck me as significant, and "The standard of corr
294.
by gchpaco 17y ago
Could you give some specifics?
295.
by gchpaco 17y ago
Ada in particular escapes this burden by requiring explicit generic instantiation, so at least you know how many of them you're dealing with.
296.
by gchpaco 17y ago
Much more likely is they just engineer a coup and quietly shoot Der Leader.
297.
by gchpaco 17y ago
It is my dearest hope that he lives long enough to finish AoCP, but I fear the odds are against it.
298.
by gchpaco 17y ago
Strictly speaking it is possible to use fonts other than R, B, I, BI using ".fn" but because the set of fonts is determined by the output device it's very limited. Much to my surprise GNU groff's font format does actually contain kerning in
299.
by gchpaco 17y ago
TeX was the first serious examination of what good typographical layout was and how to codify it. Previously there were many rules of thumb, and lots of examples, and a handful of programs for typesetting (like RUNOFF, which was and is pre
300.
by gchpaco 17y ago
Not if you want to change the value of a.

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