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What exactly does big Ө notation represent?

... It means that the algorithm is both big-O and big-Omega in the given function. For example, if it is Ө(n), then there is some constant k, such that your function (run-time, whatever), is larger than n*k for sufficiently large n, and some other constant K such that your functio...
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How can I get seconds since epoch in Javascript?

On Unix, I can run date '+%s' to get the amount of seconds since epoch. But I need to query that in a browser front-end, not back-end. ...
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How to implement a Map with multiple keys? [duplicate]

...maps. One Map<K1, V> and one Map<K2, V>. If you must have a single interface, write a wrapper class that implements said methods. share | improve this answer | ...
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Custom UITableViewCell from nib in Swift

I'm trying to create a custom table view cell from a nib. I'm referring to this article here . I'm facing two issues. 11 A...
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How to replace NaN values by Zeroes in a column of a Pandas Dataframe?

... I believe DataFrame.fillna() will do this for you. Link to Docs for a dataframe and for a Series. Example: In [7]: df Out[7]: 0 1 0 NaN NaN 1 -0.494375 0.570994 2 NaN NaN 3 1.876360 -0.229738 4 NaN NaN In [8]: df.fi...
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Passing a dictionary to a function as keyword parameters

I'd like to call a function in python using a dictionary. 4 Answers 4 ...
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LINUX: Link all files from one to another directory [closed]

I want to link ( ln -s ) all files that are in /mnt/usr/lib/ into /usr/lib/ 4 Answers ...
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Python - Count elements in list [duplicate]

I am trying to find a simple way of getting a count of the number of elements in a list: 7 Answers ...
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Do scala constructor parameters default to private val?

I have been trying: 2 Answers 2 ...
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Can't Find Theme.AppCompat.Light for New Android ActionBar Support

I am trying to implement the new ActionBar support library that was released by Google a couple days ago. In the past, I have successfully implemented ActionBarSherlock without any issues using the same method listed on Google Developer's Support Library Setup page - using the guide on how to i...