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What is “Orthogonality”?
...hogonality is the property that means "Changing A does not change B". An example of an orthogonal system would be a radio, where changing the station does not change the volume and vice-versa.
A non-orthogonal system would be like a helicopter where changing the speed can change the direction.
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How to convert an int to string in C?
...se itoa() function to convert your integer value to a string.
Here is an example:
int num = 321;
char snum[5];
// convert 123 to string [buf]
itoa(num, snum, 10);
// print our string
printf("%s\n", snum);
If you want to output your structure into a file there is no need to convert any value ...
Write bytes to file
I have a hexadecimal string (e.g 0CFE9E69271557822FE715A8B3E564BE ) and I want to write it to a file as bytes. For example,
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Change size of axes title and labels in ggplot2
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You can change axis text and label size with arguments axis.text= and axis.title= in function theme(). If you need, for example, change only x axis title size, then use axis.title.x=.
g+theme(axis.text=element_text(size=12),
axis.ti...
Get program execution time in the shell
I want to execute something in a linux shell under a few different conditions, and be able to output the execution time of each execution.
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Reading Excel files from C#
Is there a free or open source library to read Excel files (.xls) directly from a C# program?
32 Answers
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Struct Constructor in C++?
...ic by default in structs.
So structs can have constructors, and the syntax is the same as for classes.
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JavaScript function to add X months to a date
I’m looking for the easiest, cleanest way to add X months to a JavaScript date.
18 Answers
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How to update only one field using Entity Framework?
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Ladislav's answer updated to use DbContext (introduced in EF 4.1):
public void ChangePassword(int userId, string password)
{
var user = new User() { Id = userId, Password = password };
using (var db = new MyEfContextName())
{
db.Users.Attach(user);
d...
In-place type conversion of a NumPy array
...different dtype, and then copy in-place into the view:
import numpy as np
x = np.arange(10, dtype='int32')
y = x.view('float32')
y[:] = x
print(y)
yields
array([ 0., 1., 2., 3., 4., 5., 6., 7., 8., 9.], dtype=float32)
To show the conversion was in-place, note that copying from x to y...