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Confusion between numpy, scipy, matplotlib and pylab

Numpy, scipy, matplotlib, and pylab are common terms among they who use python for scientific computation. 3 Answers ...
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Which kind of pointer do I use when?

...wrote C++ for a living, std::auto_ptr was all the std lib had available, and boost::shared_ptr was all the rage. I never really looked into the other smart pointer types boost provided. I understand that C++11 now provides some of the types boost came up with, but not all of them. ...
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MySQL vs MongoDB 1000 reads

I have been very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'. ...
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Best way to create unique token in Rails?

... heard to guess, it's more like a short url identifier than anything else, and I want to keep it short. I've followed some examples I've found online and in the event of a collision, I think the code below will recreate the token, but I'm not real sure. I'm curious to see better suggestions, thoug...
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WPF Blurry fonts issue- Solutions

Problem is described and demonstrated on the following links: 11 Answers 11 ...
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When to use IList and when to use List

I know that IList is the interface and List is the concrete type but I still don't know when to use each one. What I'm doing now is if I don't need the Sort or FindAll methods I use the interface. Am I right? Is there a better way to decide when to use the interface or the concrete type? ...
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How do I implement basic “Long Polling”?

...n find lots of information on how Long Polling works (For example, this , and this ), but no simple examples of how to implement this in code. ...
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Creating your own header file in C

... that this code doesn't work if you try to just build it by button ("build and run" in Code::Blocks for example). It might seem obvious for you but for me it's the first time it has happened and it took me quite some time to figure out where is the problem. – Jeyekomon ...
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RSpec: What is the difference between a feature and a request spec?

What is the conceptual difference between Rspec's feature specs and request specs ? 1 Answer ...
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Prevent form submission on Enter key press

I have a form with two text boxes, one select drop down and one radio button . When the enter key is pressed, I want to call my JavaScript function, but when I press it, the form is submitted. ...