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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...= 0 * INF = NaN. INFrsqrt(INF) = INF * 0 = NaN. For this reason, CUDA on NVIDIA GPUs computes approximate single-precision square roots as recip(rsqrt(x)), with the hardware providing both a fast approximation to the reciprocal and the reciprocal square root. Obviously, explicit checks handling the ...
What is the difference between JAX-RS and JAX-WS?
...can know how to talk to your service. With REST you will still need to provide some documentation to other users about how the REST service is organized and what data and HTTP commands need to be sent.
share
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Django CharField vs TextField
...not being able to use the field in WHERE statements. Just something to consider.
– Rob
Jul 10 '15 at 20:00
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Difference between framework and static library in xcode4, and how to call them
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@GoRoS yes I do; in fact I just did some work for a client making their private SDK available using CocoaPods. The trick is to have a public repo with the compiled static library, headers and podspec pointing at this and a private repo with your source. Idea...
Color in git-log
...ows the commit at the tip of the current branch e.g. "HEAD -> master", did not work with --decorate=full.
Git 2.9.x+ (Q3 2016) will fix another bug and honor color=auto for %C(auto)
Git 2.10.2 (Oct. 2016) fixes other bugs with commit 82b83da (29 Sep 2016), and commit c99ad27 (17 Sep 2016)...
Named regular expression group “(?Pregexp)”: what does “P” stand for?
... mine: I've always thought it stood for Python. That may sound pretty stupid -- what, P for Python?! -- but in my defense, I vaguely remembered this thread [emphasis mine]:
Subject: Claiming (?P...) regex syntax extensions
From: Guido van Rossum (gui...@CNRI.Reston.Va.US)
Date: Dec 1...
What is the difference between `sorted(list)` vs `list.sort()`?
...5244, 2.8019039630889893, 2.849375009536743]
After some feedback, I decided another test would be desirable with different characteristics. Here I provide the same randomly ordered list of 100,000 in length for each iteration 1,000 times.
import timeit
setup = """
import random
random.seed(0)
l...
How exactly does a generator comprehension work?
...type 'generator' has no len()
>>> # We extract each item out individually. We'll do it manually first.
...
>>> next(filtered_gen)
5
>>> next(filtered_gen)
9
>>> next(filtered_gen)
6
>>> next(filtered_gen) # Should be all out of items and give an error
Tr...
Detect encoding and make everything UTF-8
...ve a mix of them. Encoding::toUTF8() will convert everything to UTF-8.
I did it because a service was giving me a feed of data all messed up, mixing UTF-8 and Latin1 in the same string.
Usage:
require_once('Encoding.php');
use \ForceUTF8\Encoding; // It's namespaced now.
$utf8_string = Encoding...
Inherit from a generic base class, apply a constraint, and implement an interface in C#
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@Visser yeah, what bwing said, also each where clause can have multiple constraints… so the syntax from the original post is correct, it just means something different that the op wanted. where T2 : IBar, IFoo just means that T2 has to implement bot...