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Why is MATLAB so fast in matrix multiplication?
...o that accesses would be in contiguous memory addresses, your code would already run much faster because now the compiler can load entire rows in the cache at the same time. Just try this modified version:
timer.start();
float temp = 0;
//transpose matice2
for (int p = 0; p < rozmer; p++)
{
...
What's the difference between the build and create methods in FactoryGirl?
...
Does #create read and return the persisted object from disk, or does it return the object that's in memory after persisting it? In other words, is is doing create(...) equivalent to create(...).reload?
– Dennis
...
Getting All Variables In Scope
...r development), or Dragonfly on Opera, or "F12 Developer Tools" on IE. And read through whatever JavaScript files they provide you. And beat them over the head for proper docs. :-)
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What is the relation between BLAS, LAPACK and ATLAS
...GNU compilers (gcc, g++ and gfortran). I have made MakeFiles which you can read to learn how you can call individual Fortran/FORTRAN routines in a C or C++ program. I have also put some installations instructions for mac and linux (sorry windows guys!). I have also made some bash .sh files for autom...
Python Sets vs Lists
... "slower" than the other is misguided and has confused new programmers who read this answer.
– habnabit
Mar 16 '18 at 1:34
...
Android buildscript repositories: jcenter VS mavencentral
...f download speed and diskspace to have the possibility of one day doing.
Read more on: The Maven index is huge!
Also, you might find this very short (1Q and 1A) discussion on Hacker News interesting.
I am with JFrog, the company behind bintray and artifactory, see my profile for details and l...
Adding git branch on the Bash command prompt
...t_ps1 will show your git branch)
4- do source .bashrc
EDIT :
Further readings : Don’t Reinvent the Wheel
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Swift - How to convert String to Double
...ishUKLocale
let englishUKCurrency = formatter.number(from: "£9,999.99")
Read more on my blog post about converting String to Double types (and currency).
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Is there a cross-browser onload event when clicking the back button?
... is reloaded when the back button is pressed. This has nothing to do with "ready".
How does this work? Well, JQuery adds an onunload event listener.
// http://code.jquery.com/jquery-latest.js
jQuery(window).bind("unload", function() { // ...
By default, it does nothing. But somehow this seems to...
Using python “with” statement with try-except block
...e code would be:
try:
f = open("file", "r")
try:
line = f.readline()
finally:
f.close()
except IOError:
<whatever>
As you can see, the with statement can make things less error prone. In newer versions of Python (2.7, 3.1), you can also combine multiple expre...