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Why is MATLAB so fast in matrix multiplication?
... 4.8019e-04
(NB: at some point (I forget when exactly) gpuArray switched from MAGMA to cuBLAS - MAGMA is still used for some gpuArray operations though)
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How do I iterate over an NSArray?
...rhaps the biggest thing an NSEnumerator (or fast enumeration) protects you from is having a mutable collection (array or otherwise) change underneath you without your knowledge while you're enumerating it. If you access the objects by index, you can run into strange exceptions or off-by-one errors (...
Composer: how can I install another dependency without updating old ones?
...Actually, the correct solution is:
composer require vendor/package
Taken from the CLI documentation for Composer:
The require command adds new packages to the composer.json file from the current directory.
php composer.phar require
After adding/changing the requirements, the modified...
Getting All Variables In Scope
...e been closed over may be referenced by a closure function upon calling it from a caller that is outside of the definition/closure scope (and whose variables are not at all accessible from withing the closure's body).
– DDS
Feb 1 '15 at 19:51
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Encode html entities in javascript
...ivalents, which is simply &#nnn; where nnn is the unicode value we get from charCodeAt.
See it in action here: http://jsfiddle.net/E3EqX/13/ (this example uses jQuery for element selectors used in the example. The base code itself, above, does not use jQuery)
Making these conversions does not ...
What's the difference between emulation and simulation? [duplicate]
...fically, an emulator attempts to duplicate the entire behavior of a device from an external viewpoint. It may or may not need to duplicate the inner workings of a device to accomplish that. A simulation attempts to duplicate a specific subset of a device's behavior.
– Jay Elsto...
How to get all properties values of a JavaScript Object (without knowing the keys)?
...hods in any browser that supports ECMAScript 5 and above. These get values from an object and avoid enumerating over the prototype chain. Where obj is your object:
var keys = Object.keys(obj);
for (var i = 0; i < keys.length; i++) {
var val = obj[keys[i]];
// use val
}
If you want som...
join list of lists in python [duplicate]
...
import itertools
a = [['a','b'], ['c']]
print(list(itertools.chain.from_iterable(a)))
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How to call a method with a separate thread in Java?
let's say I have a method doWork() . How do I call it from a separate thread (not the main thread).
7 Answers
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Rubymine: How to make Git ignore .idea files created by Rubymine
...ges in .idea/* files that I don't care about. But it keeps preventing me from checking out new branches, and makes my version of .idea/ different from my coworkers.
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