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Transposing a NumPy array
...rally speaking though, you don't ever need to worry about this. Adding the extra dimension is usually not what you want, if you're just doing it out of habit. Numpy will automatically broadcast a 1D array when doing various calculations. There's usually no need to distinguish between a row vector a...
When to use ref and when it is not necessary in C#
...ltiple return values create structs'). Take for example IPAddress.TryParse(string, out IPAddress).
– Swen Kooij
Dec 6 '13 at 21:47
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Vim: How to insert in visual block mode?
...ress ctrl+v, press j a few times, and I see the cursor highlight the first character of a few lines. I press shift+i. The cursor is moved to the first character of the first line, but I'm back to normal mode. I know this because if I press "a", it moves the character to the right, and it says "-- IN...
Get the size of the screen, current web page and browser window
...() seems to work for all elements, and returns a number (46) rather than a string like css('height') ("46px").
– Chris
Feb 6 '13 at 16:02
7
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XML serialization in Java? [closed]
...t can have problems on complecated tree structures such as JGraph with non string node objects though.
– mikek3332002
Jun 3 '10 at 4:22
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What is the pythonic way to detect the last element in a 'for' loop?
...t depends on what you are trying to do. For example, if you are building a string from a list, it's naturally better to use str.join() than using a for loop “with special case”.
Using the same principle but more compact:
for i, line in enumerate(data_list):
if i > 0:
between_i...
django models selecting single field
... a good optimization technique, but make sure that you do not create these extra queries. Otherwise you will lose performance instead of gaining it.
– Eerik Sven Puudist
Jul 19 at 18:47
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Purpose of Trigraph sequences in C++?
...h less dangerous since they get processed as tokens, so a digraph inside a string literal won't get interpreted as a digraph.
For a nice education on various fun with punctuation in C/C++ programs (including a trigraph bug that would defintinely have me pulling my hair out), take a look at Herb Sut...
How can I clear previous output in Terminal in Mac OS X?
...hould work for desktop environments in macOS, FreeBSD, Linux etc. Note the extra \33c is for clearing the extra \e[3J literal in non-macOS (basically for Linux/FreeBSD, we only need printf '\33c').
– vulcan raven
Aug 8 '19 at 16:16
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How to easily resize/optimize an image size with iOS?
...ge to center or any of four edges and four corners.
And also you can trim extra space which is added if aspect ratios of original image and target size are not equal.
enum UIImageAlignment {
case Center, Left, Top, Right, Bottom, TopLeft, BottomRight, BottomLeft, TopRight
}
enum UIImageScaleM...