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Performance of Java matrix math libraries? [closed]

We are computing something whose runtime is bound by matrix operations. (Some details below if interested.) This experience prompted the following question: ...
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Is there a built in function for string natural sort?

... I have a list of strings for which I would like to perform a natural alphabetical sort. 18 Answers ...
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How to base64 encode image in linux bash / shell

I'm trying to base64 encode an image in a shell script and put it into variable: 6 Answers ...
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Best way to parse command line arguments in C#? [closed]

When building console applications that take parameters, you can use the arguments passed to Main(string[] args) . 20 Ans...
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Is SecureRandom thread safe?

...ead safe? That is, after initializing it, can access to the next random number be relied on to be thread safe? Examining the source code seems to show that it is, and this bug report seems to indicate that its lack of documentation as thread safe is a javadoc issue. Has anyone confirmed that it is...
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Convert an integer to a float number

... answered Oct 7 '13 at 16:44 zmbzmb 6,32133 gold badges3434 silver badges5151 bronze badges ...
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Mutex example / tutorial? [closed]

I'm new to multithreading, and was trying to understand how mutexes work. Did a lot of Googling but it still left some doubts of how it works because I created my own program in which locking didn't work. ...
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How do I create a list of random numbers without duplicates?

I tried using random.randint(0, 100) , but some numbers were the same. Is there a method/module to create a list unique random numbers? ...
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Plotting a list of (x, y) coordinates in python matplotlib

I have a list of pairs (a, b) that I would like to plot with matplotlib in python as actual x-y coordinates. Currently, it is making two plots, where the index of the list gives the x-coordinate, and the first plot's y values are the a s in the pairs and the second plot's y values are the b s ...
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PHP parse/syntax errors; and how to solve them

... What are the syntax errors? PHP belongs to the C-style and imperative programming languages. It has rigid grammar rules, which it cannot recover from when encountering misplaced symbols or identifiers. It can't guess your coding intentions. Most importan...