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Why is MATLAB so fast in matrix multiplication?
...4
>> gputimeit(@()gA*gA)
ans =
0.0022
Update using R2018b on a WIN64 machine with 16 physical cores and a Tesla V100:
>> timeit(@()A*A)
ans =
0.0229
>> gputimeit(@()gA*gA)
ans =
4.8019e-04
(NB: at some point (I forget when exactly) gpuArray switched from MAGMA to cu...
How to enable C++11/C++0x support in Eclipse CDT?
...hose steps and it works for me. I am using Eclipse Indigo 20110615-0604 on Windows with a Cygwin setup.
Make a new C++ project
Default options for everything
Once created, right-click the project and go to "Properties"
C/C++ Build -> Settings -> Tool Settings -> GCC C++ Compiler -> Mi...
Why is quicksort better than mergesort?
...ce an algorithm’s runtime, and, when taking them all together, quicksort wins out.
In particular, the often-quoted runtime of sorting algorithms refers to the number of comparisons or the number of swaps necessary to perform to sort the data. This is indeed a good measure of performance, especial...
How to test multiple variables against a value?
... If you can arrange for the most likely case to be first in the tuple, the win is even bigger: (my test: timeit.timeit('0 in {seq}'.format(seq=tuple(range(9, -1, -1)))))
– SingleNegationElimination
Oct 24 '13 at 15:27
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How can we make xkcd style graphs?
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answered Oct 1 '12 at 22:11
Mark BullingMark Bulling
2,09922 gold badges99 silver badges33 bronze badges
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Collections.emptyMap() vs new HashMap()
...sing a Collection instead of null to avoid Exceptions being thrown on following operations? Using an immutable collection would just result in some other sort of exception I imagine. And assigning null is most certainly not less efficient than assigning a immutable constant.
– ...
How to use nodejs to open default browser and navigate to a specific URL
...rbesLindesay the callback is being called immediately, instead of when the window is closed. Any ideas?
– Sam Selikoff
Mar 1 '14 at 18:30
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How to check if AlarmManager already has an alarm set?
...
Following up on the comment ron posted, here is the detailed solution. Let's say you have registered a repeating alarm with a pending intent like this:
Intent intent = new Intent("com.my.package.MY_UNIQUE_ACTION");
PendingIntent...
Setting design time DataContext on a Window is giving a compiler error?
...from
Nathan, Adam (2010-06-04). WPF 4 Unleashed (Kindle Locations 1799-1811). Sams. Kindle Edition.
Markup Compatibility
The markup compatibility XML namespace (http://schemas.openxmlformats.org/markup-compatibility/2006, typically used with an mc prefix) contains an Ignorable attribute that ins...
How to add semicolon after method call when inside parameter list in IntelliJ IDEA?
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For Windows or Linux users, Ctrl+Shift+Enter.
For macOS/OS X users, ⌘ Command+⇧ Shift+Enter.
That finishes the statement you're currently writing. Try it in a few different situations, like in if statements, for loops etc, ...