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Is PowerShell ready to replace my Cygwin shell on Windows? [closed]
...use it is included as an optional component and does not need a download.
V2 will ship in all versions of Windows. It will be on-by-default for all editions except Server core where it is an optional component. Shortly after Windows 7/Windows Server 2008 R2 ships, we'll make V2 available on all pla...
Is there an easy way to check the .NET Framework version?
...w C:\Windows\Microsoft.NET\Framework (subdirectories v1.0.3705, v1.1.4322, v2.0.50727, v3.0, v3.5 and v4.0.30319).
Since version 4.5 this has been changed: Each version of .NET (i.e. 4.5.x, 4.6.x, 4.7.x, 4.8.x, ...) is being installed in the same subdirectory v4.0.30319 - so you are no longer able ...
How do I read CSV data into a record array in NumPy?
...ent)k
0inputs+24outputs (0major+107147minor)pagefaults 0swaps
23.29user 0.72system 0:23.72elapsed 101%CPU (0avgtext+0avgdata 1680888maxresident)k
0inputs+0outputs (0major+416145minor)pagefaults 0swaps
test_numpy_csv.py
from numpy import genfromtxt
train = genfromtxt('/home/hvn/me/notebook/train....
Which is faster: Stack allocation or Heap allocation
This question may sound fairly elementary, but this is a debate I had with another developer I work with.
23 Answers
...
In Matlab, when is it optimal to use bsxfun?
...n. You can also think about it as the outer product from BLAS:
v1=[0:2]';
v2 = 1:numel(a)-2;
tic;
vout = v1*v2;
toc
Elapsed time is 0.309763 seconds.
You multiply two vectors to obtain a matrix. Just that the outer product only performs multiplication, and bsxfun can apply arbitrary operators. As...
Why does changing 0.1f to 0 slow down performance by 10x?
... on whether 0 or 0.1 is used.
Here's the test code compiled on x64:
int main() {
double start = omp_get_wtime();
const float x[16]={1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0,2.1,2.2,2.3,2.4,2.5,2.6};
const float z[16]={1.123,1.234,1.345,156.467,1.578,1.689,1.790,1.812,1.923,2.034,2.145...
Why does Java switch on contiguous ints appear to run faster with added cases?
... ;*new ; - javaapplication4.Test1::multiplyByPowerOfTen@72 (line 83)
; {runtime_call}
0x00000000024f0190: int3 ;*new ; - javaapplication4.Test1::multiplyByPowerOfTen@72 (line 83)
0x00000000024f0191: mulsd ...
在 App Inventor 2 中使用图像 · App Inventor 2 中文网
...”
Determining the size of the image on the screen
Details on fixed vs. responsive sizing
In summary: What MIT App Inventor Programmers Should Do
Synopsis: App Inventor works best if you use images whose size matches the size you want them to appear on your screen...
Does a favicon have to be 32x32 or 16x16?
... Safari Reader List sidebar in HiDPI/Retina
70 x 70 – Win 8.1 Metro tile
72 x 72 – iPad touch up to iOS6
76 x 76 – iOS7
96 x 96 – GoogleTV
114 x 114 – iPhone retina touch up to iOS6
120 x 120 – iPhone retina touch iOS7
128 x 128 – Chrome Web Store app, Android
144 x 144 – IE10 Metro ...
What is the difference between graph search and tree search?
...n
}
return next
Depending on how you implement select from open, you obtain different variants of search algorithms, like depth-first search (DFS) (pick newest element), breadth first search (BFS) (pick oldest element) or uniform cost search (pick element with lowest path cost), the popular A-sta...