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What is more efficient? Using pow to square or just multiply it with itself?

What of these two methods is in C more efficient? And how about: 7 Answers 7 ...
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What is the purpose of “&&” in a shell command?

As far as I know, using & after the command is for running it in the background. 9 Answers ...
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How to install Google Play Services in a Genymotion VM (with no drag and drop support)?

...w can I install Google Play Services in a Genymotion emulator with no drag and drop support? 17 Answers ...
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Common MySQL fields and their appropriate data types

...g up a very small MySQL database that stores, first name, last name, email and phone number and am struggling to find the 'perfect' datatype for each field. I know there is no such thing as a perfect answer, but there must be some sort of common convention for commonly used fields such as these. For...
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Difference between single and double quotes in Bash

In Bash, what are the differences between single quotes ( '' ) and double quotes ( "" )? 6 Answers ...
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Will the Garbage Collector call IDisposable.Dispose for me?

The .NET IDisposable Pattern implies that if you write a finalizer, and implement IDisposable, that your finalizer needs to explicitly call Dispose. This is logical, and is what I've always done in the rare situations where a finalizer is warranted. ...
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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting

I have a set of data and I want to compare which line describes it best (polynomials of different orders, exponential or logarithmic). ...
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Why does pthread_cond_wait have spurious wakeups?

... operations. In the following comp.programming.threads discussion, he expands on the thinking behind the design: Patrick Doyle wrote: > In article , Tom Payne wrote: > >Kaz Kylheku wrote: > >: It is so because implementations can sometimes not avoid inserting > >: the...
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Matplotlib discrete colorbar

...d) is making 0 showup as grey. For images i often use the cmap.set_bad() and convert my data to a numpy masked array. That would be much easier to make 0 grey, but i couldnt get this to work with the scatter or the custom cmap. As an alternative you can make your own cmap from scratch, or read-o...
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Xcode without Storyboard and ARC

i have downloaded new xcode-5 and just started using it. 6 Answers 6 ...