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Get current batchfile directory

...the path of the caller of the batch, not the batch file location. You can get the name of the batch script itself as typed by the user with %0 (e.g. scripts\mybatch.bat). Parameter extensions can be applied to this so %~dp0 will return the Drive and Path to the batch script (e.g. W:\scripts\) and %...
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Why is '+' not understood by Python sets?

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Understanding ibeacon distancing

Trying to grasp a basic concept of how distancing with ibeacon (beacon/ Bluetooth-lowenergy/BLE) can work. Is there any true documentation on how far exactly an ibeacon can measure. Lets say I am 300 feet away...is it possible for an ibeacon to detect this? ...
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Finding local maxima/minima with Numpy in a 1D numpy array

Can you suggest a module function from numpy/scipy that can find local maxima/minima in a 1D numpy array? Obviously the simplest approach ever is to have a look at the nearest neighbours, but I would like to have an accepted solution that is part of the numpy distro. ...
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Why is using 'eval' a bad practice?

I am using the following class to easily store data of my songs. 8 Answers 8 ...
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How to Parse Command Line Arguments in C++? [duplicate]

What is the best way of parsing command-line arguments in C++ if the program is specified to be run like this: 10 Answers ...
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Why doesn't Java Map extend Collection?

I was surprised by the fact that Map<?,?> is not a Collection<?> . 9 Answers ...
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How do I check if a list is empty?

For example, if passed the following: 27 Answers 27 ...
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How do ACID and database transactions work?

... ACID is a set of properties that you would like to apply when modifying a database. Atomicity Consistency Isolation Durability A transaction is a set of related changes which is used to achieve some of the ACID properties. Transactions are tools to achieve the ACID properties. Atomicity me...
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Creating a BLOB from a Base64 string in JavaScript

I have Base64-encoded binary data in a string: 12 Answers 12 ...