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Why do we need tuples in Python (or any immutable data type)?
...ding a tuple is over 7.6 times faster than building the equivalent list -- now you can't say you've "never seen a noticeable difference" any more, unless your definition of "noticeable" is truly peculiar...
– Alex Martelli
Feb 1 '10 at 4:35
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What exactly does big Ө notation represent?
...4 is playing a role of x here so,
Replacing n4 with x'so, Big O(x') = 2x', Now we both are happy General Concept is
So 0 ≤ f(n) ≤ O(x')
O(x') = cg(n) = 3n4
Putting Value,
0 ≤ 2n4 + 100n2 + 10n + 50 ≤ 3n4
3n4 is our Upper Bound
Theta(n) Provides Lower Bound
Theta(n4) = cg(n) = 2n4 Because 2n4...
Assign pandas dataframe column dtypes
...number":"int64",
"car_name":"object","minutes_spent":"float64"})
now you can see that it's changed
In [18]: data_df.dtypes
Out[18]:
wheel_number int64
car_name object
minutes_spent float64
share...
What's the difference between “mod” and “remainder”?
...implementation just had to document which. C99 removed the flexibility, so now -5 / 2 is always -2.
– Steve Jessop
Dec 3 '12 at 13:23
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Implementing two interfaces in a class with same method. Which interface method is overridden?
... @TassosBassoukos +1 say you have your own implementation of List, now you can myList.stream() it or myList.sort() it without changing your code
– Peter Lawrey
Jun 25 '14 at 6:04
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Markdown and including multiple files
...gle link from one file to another in any version of markdown (so far as I know).
The closest you could come to this functionality is Pandoc. Pandoc allows you to merge files as a part of the transformation, which allows you to easily render multiple files into a single output. For example, if y...
Detect if the app was launched/opened from a push notification
Is it possible to know if the app was launched/opened from a push notification?
26 Answers
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Cookies vs. sessions
...than simplicity. Look at it this way... Does the user have any reason to know their ID#? Typically I would say no, the user has no need for this information. Giving out information should be limited on a need to know basis. What if the user changes his cookie to have a different ID, how will you...
Android ImageView Zoom-in and Zoom-Out
...with "return (float)Math.sqrt(x * x + y * y);" coz FloatMath is deprecated now. Cheers
– Nagaraj Alagusudaram
Oct 12 '15 at 12:00
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When to use the JavaScript MIME type application/javascript instead of text/javascript?
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@Pacerier - I know this comment is 5 years old, but today it is often best to include mime types, particularly for forum type websites, for security reasons. Having the receiver interpret the type leaves one open to attack by uploading a ma...