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How to use the PI constant in C++
...a:
M_PI
In my math.h (2014) it is defined as:
# define M_PI 3.14159265358979323846 /* pi */
but check your math.h for more. An extract from the "old" math.h (in 2009):
/* Define _USE_MATH_DEFINES before including math.h to expose these macro
* definitions for common math constant...
RESTful URL design for search
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edited Feb 14 '13 at 13:06
Gaz_Edge
12.1k55 gold badges4848 silver badges8989 bronze badges
an...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
...nd places it behind the content of another.
If we have
list1 = [0, 1, 2, 3, 4]
list2 = [5, 6, 7, 8, 9]
Then
list1 + list2
Is the same as
[0, 1, 2, 3, 4] + [5, 6, 7, 8, 9]
Which evaluates to
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
Much like
"abdcde" + "fghijk"
Produces
"abdcdefghijk"
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PHP abstract properties
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edited Jul 3 '13 at 12:48
Emanuil Rusev
30.8k4747 gold badges121121 silver badges191191 bronze badges
...
How to get method parameter names?
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363
Take a look at the inspect module - this will do the inspection of the various code object pro...
How to programmatically click a button in WPF?
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130
WPF takes a slightly different approach than WinForms here. Instead of having the automation o...
How to convert a char array back to a string?
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213
No, that solution is absolutely correct and very minimal.
Note however, that this is a very un...
How to find index of list item in Swift?
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831
As swift is in some regards more functional than object-oriented (and Arrays are structs, not o...
Split array into chunks
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edited Jan 2 '19 at 16:32
answered Dec 13 '11 at 20:28
B...
MySQL load NULL values from CSV data
I have a file that can contain from 3 to 4 columns of numerical values which are separated by comma. Empty fields are defined with the exception when they are at the end of the row:
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