jedbrown

67 ms·

601.
by jedbrown 16y ago
The API is more confusing if they always have to lug around the extra * and type out struct if they can never dereference it. I am strongly in favor of typedefing pointer types that are strictly private.
602.
by jedbrown 16y ago
Interesting, all the specs I've seen say it only supports UMTS Band I (2100, Europe) and IV (1700 "AWS", US T-mobile). You'd think they would have mentioned that it also supports band II (1900, AT&T). I just ran a fresh search and cam
603.
by jedbrown 16y ago
Prepaid data plans are a joke. But if you own your phone, then you can get a month-to-month contract without a credit check.
604.
by jedbrown 16y ago
If you want 3G in the US, then your choice of phone ties you to a carrier. I own a Vibrant (off contract) and although I can use it with any carrier when in Europe, I couldn't leave T-mobile because the 3G radio won't work with other US car
605.
by jedbrown 16y ago
Sure uses a lot of stack.
606.
by jedbrown 16y ago
Trefethen and Bau is a good numerical linear algebra text, a fair bit of statistics can be understood in the linear algebra setting and this book helps teach how to think about linear algebra in a very useful way. I don't have a great refer
607.
by jedbrown 16y ago
It's an undergrad text so it can't assume a great deal of mathematical maturity, hence everything takes longer.
608.
by jedbrown 16y ago
Both gcc-4.5.1 and clang-1.1 (from LLVM 2.7) both silently accept the second case with -Wall -Wextra -pedantic.
609.
by jedbrown 16y ago
Excellent detective work Watson, but there are more direct ways.
610.
by jedbrown 16y ago
A former professor of mine grew up with Paul Erdös frequently living at her house. Her father is a prominent graph theorist and has 50 papers with Paul Erdös. Ordinarily she would have Erdös number 2 through several papers with her dad, b
611.
by jedbrown 16y ago
"On the limits of GPU Acceleration" (short summary from Richard Vuduc): http://vuduc.org/pubs/vuduc2010-hotpar-cpu-v-gpu.pdf "Understanding the design trade-offs among current multicore systems for numerical computations" (somewhat more t
612.
by jedbrown 16y ago
with cache coherency fully guaranteed in all respects It's not at all clear that this is desirable. I'd much rather have thin (one or two socket) systems with a reliable network and write for distributed memory. Even four-socket systems
613.
by jedbrown 16y ago
throw the sucker at a video card, and watch it finish thousands of times faster on cheaper hardware This is nonsense even for dense operations. But this matrix is sparse, in which case GPUs are within a modest factor (2-5 or so depending
614.
by jedbrown 16y ago
return reduce(fn, lst) does the same thing.
615.
by jedbrown 16y ago
Which kernels actually do this? Also, if I read(2), it's supposed to be putting stuff in my buffer (obtained with malloc or whatever). It would seem very complicated to change the mapping for addresses in this buffer. And if I write to th
616.
by jedbrown 16y ago
Responsible library maintainers ensure that security fixes and subminor releases are drop-in replacements. No distro rebuilds the world under these circumstances.
617.
by jedbrown 16y ago
When I was young (0-2 and 4-7), my family lived in a remote part of Alaska where we needed very little money and correspondingly earned very little money (~$3k/year for a family of 4). But we lived like kings, with hundreds of square miles
618.
by jedbrown 16y ago
And reinstall your entire operating system when a core library needs a security patch.
619.
by jedbrown 16y ago
Almost, "with" became a keyword.
620.
by jedbrown 16y ago
We can't drop Python 2.3 until 2012 (when RHEL4 reaches end-of-life).
621.
by jedbrown 16y ago
My point is that the lowest common denominator is higher for users of something like Django because Python is a central component of what they do, thus it's reasonable to assume that they are not using an 8-year old Python environment.
622.
by jedbrown 16y ago
There's a lot of equivalent old warts in Perl that haven't been fixed This is the crux of the issue. Serious language users (especially the ones writing the new libraries that add significant value to your platform) want the warts
623.
by jedbrown 16y ago
have there own repositories that are _not_ linked into the systems way of doing things One approach is to have a system that packages everything in the language-specific repository for the distro. Haskell on Archlinux is an examp
624.
by jedbrown 16y ago
Django is in a very different situation because Python is central to all of its users, therefore it is reasonable to expect that they maintain a somewhat modern (released in the last 3 or 5 years, say) environment. When Python merely perfo
625.
by jedbrown 16y ago
> equivalent of targeting Python 1.6 and 2.0. I'm less in touch with Perl language development in the past decade, but my impression is that the difference between Perl-5.6 and Perl-5.12 is much less than between these versions of Pytho
626.
by jedbrown 16y ago
This is a major problem. PETSc uses Python for configuration and we have to be careful not to use any features requiring >2.3. The last release (this spring) required 2.2 because RHEL3 is still supported (in production phase 3, see h
627.
by jedbrown 16y ago
They are also violating the terms of their contract if they make fraudulent transactions on your behalf (to put it mildly). Which is why we're not worried about above-board merchants committing outright fraud, but we are worried possibly i
628.
by jedbrown 16y ago
What country are you in? The machines in Zurich pretty much always take 8-10 seconds just to get around to asking for a PIN, then a further 5 seconds to confirm. This, in a reasonably wired city where both my bank and the merchant's bank
629.
by jedbrown 16y ago
the restaurant gets my money without ever knowing my card details It's still their hardware. I think what Cushman wants is for the merchant to present the customer with a QR Code, the customer scans this with their device and regi
630.
by jedbrown 16y ago
In Switzerland, you get a 6-digit PIN, a chip in the card, and SecurID to log into online banking, but you are held responsible if unauthorized transactions go through.

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