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Difference between numpy.array shape (R, 1) and (R,)
...me of the operations return in shape (R, 1) but some return (R,) . This will make matrix multiplication more tedious since explicit reshape is required. For example, given a matrix M , if we want to do numpy.dot(M[:,0], numpy.ones((1, R))) where R is the number of rows (of course, the same...
Circle line-segment collision detection algorithm?
I have a line from A to B and a circle positioned at C with the radius R.
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MD5 algorithm in Objective-C
How to calculate the MD5 in Objective-C?
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Writing to an Excel spreadsheet
I am new to Python. I need to write some data from my program to a spreadsheet. I've searched online and there seem to be many packages available (xlwt, XlsXcessive, openpyxl). Others suggest to write to a .csv file (never used CSV and don't really understand what it is).
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How to convert std::string to LPCSTR?
How can I convert a std::string to LPCSTR ? Also, how can I convert a std::string to LPWSTR ?
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Can I grep only the first n lines of a file?
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How do I do base64 encoding on iOS?
...ng and decoding, but I could not find any support from the iPhone SDK . How can I do base64 encoding and decoding with or without a library?
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Find JavaScript function definition in Chrome
...Tools rock, but one thing they don't seem to have (that I could find) is a way to find a JavaScript function's definition. This would be super handy for me because I'm working on a site that includes many external JS files. Sure grep solves this but in the browser would be much better. I mean, the b...
When should I use genetic algorithms as opposed to neural networks? [closed]
Is there a rule of thumb (or set of examples) to determine when to use genetic algorithms as opposed to neural networks (and vice-versa) to solve a problem?
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