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How to round a number to significant figures in Python

... You should use log10(abs(x)), otherwise negative numbers will fail (And treat x == 0 separately of course) – Tobias Kienzler Jul 30 '13 at 8:06 2 ...
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Save ArrayList to SharedPreferences

...ist with custom objects. Each custom object contains a variety of strings and numbers. I need the array to stick around even if the user leaves the activity and then wants to come back at a later time, however I don't need the array available after the application has been closed completely. I save...
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Best Practice for Forcing Garbage Collection in C#

...need them. If you have custom objects, look at using the "using statement" and the IDisposable interface. This link has some good practical advice with regards to freeing up memory / garbage collection etc: http://msdn.microsoft.com/en-us/library/66x5fx1b.aspx ...
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Any way to break if statement in PHP?

Is there any command in PHP to stop executing the current or parent if statement, same as break or break(1) for switch / loop . For example ...
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How to set a timer in android

What is the proper way to set a timer in android in order to kick off a task (a function that I create which does not change the UI)? Use this the Java way: http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Timer.html ...
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How do I remove a submodule?

...le (no trailing slash) # or, if you want to leave it in your working tree and have done step 0 3. git rm --cached a/submodule 3bis mv a/submodule_tmp a/submodule Explanation rm -rf: This is mentioned in Daniel Schroeder's answer, and summarized by Eonil in the comments: This leaves .git/mo...
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Comparing two files in linux terminal

There are two files called "a.txt" and "b.txt" both have a list of words. Now I want to check which words are extra in "a.txt" and are not in "b.txt" . ...
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How to store a list in a column of a database table

...ould create another table that effectively holds the elements of said list and then link to it directly or through a junction table. However, the type of list I want to create will be composed of unique items (unlike the linked question's fruit example). Furthermore, the items in my list are exp...
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What is the benefit of using $() instead of backticks in shell scripts?

There are two ways to capture the output of command line in bash : 8 Answers 8 ...
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Segue to another storyboard?

...ard? I need to place a UITabBarController in a UINavigationController , and I'd like to keep them nice and separate. 6 A...