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Saving a Numpy array as an image
I have a matrix in the type of a Numpy array. How would I write it to disk it as an image? Any format works (png, jpeg, bmp...). One important constraint is that PIL is not present.
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How do you create a toggle button?
I want to create a toggle button in html using css. I want it so that when you click on it , it stays pushed in and than when you click it on it again it pops out.
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Get number days in a specified month using JavaScript? [duplicate]
Say I have the month as a number and a year.
4 Answers
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Data structure for loaded dice?
Suppose that I have an n-sided loaded die where each side k has some probability p k of coming up when I roll it. I'm curious if there is good algorithm for storing this information statically (i.e. for a fixed set of probabilities) so that I can efficiently simulate a random roll of the die.
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Scrolling child div scrolls the window, how do I stop that?
I have a div, with a scroll bar, When it reaches the end, my page starts scrolling. Is there anyway I can stop this behavior ?
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The most efficient way to implement an integer based power function pow(int, int)
What is the most efficient way given to raise an integer to the power of another integer in C?
17 Answers
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Python: finding an element in a list [duplicate]
What is a good way to find the index of an element in a list in Python?
Note that the list may not be sorted.
10 Answers
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How to pad zeroes to a string?
What is a Pythonic way to pad a numeric string with zeroes to the left, i.e. so the numeric string has a specific length?
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How can I convert a string to a number in Perl?
I have a string which holds a decimal value in it and I need to convert that string into a floating point variable. So an example of the string I have is "5.45" and I want a floating point equivalent so I can add .1 to it. I have searched around the internet, but I only see how to convert a string t...
Get protocol + host name from URL
In my Django app, I need to get the host name from the referrer in request.META.get('HTTP_REFERER') along with its protocol so that from URLs like:
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