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What is the relation between BLAS, LAPACK and ATLAS

I don't understand how BLAS, LAPACK and ATLAS are related and how I should use them together! I have been looking through all of their manuals and I have a general idea of BLAS and LAPACK and how to use them with the very few examples I find, but I can't find any actual examples using ATLAS to see h...
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Are Java static initializers thread safe?

I'm using a static code block to initialize some controllers in a registry I have. My question is therefore, can I guarantee that this static code block will only absolutely be called once when the class is first loaded? I understand I cannot guarantee when this code block will be called, I'm guessi...
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Set focus on TextBox in WPF from view model

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Get exception description and stack trace which caused an exception, all as a string

I've seen a lot of posts about stack trace and exceptions in Python. But haven't found what I need. 11 Answers ...
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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in

I have searched about static variables in C#, but I am still not getting what its use is. Also, if I try to declare the variable inside the method it will not give me the permission to do this. Why? ...
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Determining complexity for recursive functions (Big O notation)

I have a Computer Science Midterm tomorrow and I need help determining the complexity of these recursive functions. I know how to solve simple cases, but I am still trying to learn how to solve these harder cases. These were just a few of the example problems that I could not figure out. Any help wo...
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How to add an empty column to a dataframe?

What's the easiest way to add an empty column to a pandas DataFrame object? The best I've stumbled upon is something like ...
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Avoiding if statement inside a for loop?

I have a class called Writer that has a function writeVector like so: 4 Answers 4 ...
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How to index characters in a Golang string?

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What is The Rule of Three?

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