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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
...pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it.
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Why functional languages? [closed]
...se side-effect-free functions as a basic building block in the language. This enables lots of things and makes a lot of things more difficult (or in most cases different from what people are used to).
One of the biggest advantages with functional programming is that the order of execution of side-e...
What is the Simplest Way to Reverse an ArrayList?
What is the simplest way to reverse this ArrayList?
10 Answers
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Is there a ceiling equivalent of // operator in Python?
I found out about the // operator in Python which in Python 3 does division with floor.
7 Answers
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Safe (bounds-checked) array lookup in Swift, through optional bindings?
If I have an array in Swift, and try to access an index that is out of bounds, there is an unsurprising runtime error:
19 A...
C++ Double Address Operator? (&&)
...ding STL source code and I have no idea what && address operator is supposed to do. Here is a code example from stl_vector.h :
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How do you add an in-app purchase to an iOS application?
... do you add an in-app purchase to an iOS app? What are all the details and is there any sample code?
5 Answers
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Run certain code every n seconds [duplicate]
Is there a way to, for example, print Hello World! every n seconds?
For example, the program would go through whatever code I had, then once it had been 5 seconds (with time.sleep() ) it would execute that code. I would be using this to update a file though, not print Hello World.
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How do I check if a Sql server string is null or empty
...o check for data, but ignore it if it's null or empty. Currently the query is as follows...
18 Answers
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How to remove time portion of date in C# in DateTime object only?
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edited Mar 13 '13 at 6:48
Vishal Suthar
15.8k22 go...