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Generate a heatmap in MatPlotLib using a scatter data set
...rom pip (see webpage documentation). Consider the following code, which is based on the example:
import numpy as np
import numpy.random
import matplotlib.pyplot as plt
import sphviewer as sph
def myplot(x, y, nb=32, xsize=500, ysize=500):
xmin = np.min(x)
xmax = np.max(x)
ymin = np....
How do you calculate log base 2 in Java for integers?
I use the following function to calculate log base 2 for integers:
10 Answers
10
...
Best way to obfuscate an e-mail address on a website?
...
A lightweight way to obfuscate the href of an anchor is to base64-encode it:
> btoa('mailto:email@example.com')
< "bWFpbHRvOmVtYWlsQGV4YW1wbGUuY29t"
And then include it hardcoded:
<a href="javascript:window.location.href=atob('bWFpbHRvOmVtYWlsQGV4YW1wbGUuY29t')">E-Mai...
Visual Studio 64 bit?
Is there any 64 bit Visual Studio at all? Why not?
5 Answers
5
...
maximum value of int
... trivially extended for unsigned types:
// We can use it to define limits based on actual compiler built-in types also:
#define INT_MAX SIGNED_MAX(int)
// based on the above, we can extend it for unsigned types also:
#define UNSIGNED_MAX(x) ( (SIGNED_MAX(x)<<1) | 1 ) // We reuse SIGNED_MA...
How to determine whether a given Linux is 32 bit or 64 bit?
...
Try uname -m. Which is short of uname --machine and it outputs:
x86_64 ==> 64-bit kernel
i686 ==> 32-bit kernel
Otherwise, not for the Linux kernel, but for the CPU, you type:
cat /proc/cpuinfo
or:
grep flags /proc/cpuinfo
Under "flags" parameter, you will see various values...
Reading 64bit Registry from a 32bit application
... a c# unit test project that is compiled for AnyCPU. Our build server is a 64bit machine, and has a 64bit SQL Express instance installed.
...
How to determine programmatically whether a particular process is 32-bit or 64-bit
...pplication/process (note: not the current process) is running in 32-bit or 64-bit mode?
7 Answers
...
Programmer Puzzle: Encoding a chess board state throughout a game
...ll cater for a lot of previously mentioned issues.
But we can do better.
Base 13 Encoding
It is often helpful to think of the board position as a very large number. This is often done in computer science. For example, the halting problem treats a computer program (rightly) as a large number.
The...
.NET console application as Windows service
...const string ServiceName = "MyService";
public class Service : ServiceBase
{
public Service()
{
ServiceName = Program.ServiceName;
}
protected override void OnStart(string[] args)
{
Program.Start(args);
}
prot...