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Maximum length of the textual representation of an IPv6 address?
...t two groups can be written in base 10 separated by ., eg. [::ffff:192.168.100.228]. Written out fully:
0000:0000:0000:0000:0000:ffff:192.168.100.228
(6 * 4 + 5) + 1 + (4 * 3 + 3) = 29 + 1 + 15 = 45
Note, this is an input/display convention - it's still a 128 bit address and for storage it w...
Is there a 'box-shadow-color' property?
...
}
div {
display: inline-block;
background: white;
height: 100px;
width: 100px;
margin: 30px;
border-radius: 50%;
}
<div class="green"></div>
<div class="red"></div>
The bug mentioned in the comment below has since been fixed :)
...
Generate random numbers using C++11 random library
... Except that isn't uniform (0 to N-1). The reason is easy, let's suppose N=100 and RAND_MAX = 32758. There is not a way to uniformely map 32758 elements (RAND_MAX) to 100 inputs. The unique way is set a bound on 32000 and re-execute rand() if gets out of bounds
– amchacon
...
Detect network connection type on Android
...TelephonyManager.NETWORK_TYPE_1xRTT:
return false; // ~ 50-100 kbps
case TelephonyManager.NETWORK_TYPE_CDMA:
return false; // ~ 14-64 kbps
case TelephonyManager.NETWORK_TYPE_EDGE:
return false; // ~ 50-100 kbps
case ...
How to compile a 64-bit application using Visual C++ 2010 Express?
..., under Configuration Properties | General, change Platform Toolset from "v100" to "Windows7.1SDK".
These steps have worked for me, anyway. Some more details on step 2 can be found in a reference from Microsoft that a previous poster mentioned: http://msdn.microsoft.com/en-us/library/9yb4317s.aspx...
Java dynamic array sizes?
...st<xClass>();
// fill it with a random number between 0 and 100
int elements = new Random().nextInt(100);
for( int i = 0 ; i < elements ; i++ ) {
list.add( new xClass() );
}
// convert it to array
xClass [] array = list.toArray...
Check if at least two out of three booleans are true
... }
static void work()
{
boolean [] data = new boolean [10000];
java.util.Random r = new java.util.Random(0);
for(int i=0;i<data.length;i++)
data[i] = r.nextInt(2) > 0;
long t0,t1,t2,t3,t4,tDEAD;
int sz1 = 100;
int sz2 = 10...
How do I convert a numpy array to (and display) an image?
... 13., 10., 0., 0., 0.]])
Create empty 10 x 10 subplots for visualizing 100 images
import matplotlib.pyplot as plt
fig, axes = plt.subplots(10,10, figsize=(8,8))
Plotting 100 images
for i,ax in enumerate(axes.flat):
ax.imshow(digits.images[i])
Result:
What does axes.flat do?
It creates a n...
What do pty and tty mean?
...
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...
How are software license keys generated?
...e'll plot this graph, pick four points and encode into a string as "0,-500;100,-300;200,-100;100,600"
We'll encrypt the string with a known and fixed key (horribly weak, but it serves a purpose), then convert the resulting bytes through Base32 to generate the final key
The application can then rev...