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How to work with complex numbers in C?
How can I work with complex numbers in C? I see there is a complex.h header file, but it doesn't give me much information about how to use it. How to access real and imaginary parts in an efficient way? Is there native functions to get module and phase?
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Git: Discard all changes on a diverged local branch
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How to parse a CSV file in Bash?
I'm working on a long Bash script. I want to read cells from a CSV file into Bash variables. I can parse lines and the first column, but not any other column. Here's my code so far:
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Java Enum Methods - return opposite direction enum
I would like to declare an enum Direction, that has a method that returns the opposite direction (the following is not syntactically correct, i.e, enums cannot be instantiated, but it illustrates my point). Is this possible in Java?
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How to drop columns by name in a data frame
I have a large data set and I would like to read specific columns or drop all the others.
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What's the role of adapters in Android?
I want to know when , where and how adapters are used in the context of Android.
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How to use ADB to send touch events to device using sendevent command?
I am trying to send touch events to a device using AndroidDebugBridge, so that I can do some basic automation for UI tests. I have followed the discussion in LINK . I am able to use sendevent to simulate touch on emulators, but unable to do the same on a device.
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How do I rename all files to lowercase?
...r example TREE.wav, ONE.WAV. I want to rename it to tree.wav, one.wav. How do I rename all files to lowercase?
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Must qualify the allocation with an enclosing instance of type GeoLocation
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How to use a variable for the key part of a map
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