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Django rest framework, use different serializers in the same ModelViewSet
I would like to provide two different serializers and yet be able to benefit from all the facilities of ModelViewSet :
6 A...
What is the rationale for all comparisons returning false for IEEE754 NaN values?
...ify things a bit.
First off, floating-point numbers are not real numbers, and floating-point arithmetic does not satisfy the axioms of real arithmetic. Trichotomy is not the only property of real arithmetic that does not hold for floats, nor even the most important. For example:
Addition is not...
How to affect other elements when one element is hovered
...ral sibling combinator ~ for 'cube is somewhere after container in the DOM and shares a parent'
– robertc
Dec 21 '10 at 18:50
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Insert a row to pandas dataframe
... df.index + 1 # shifting index
df = df.sort_index() # sorting by index
And you get, as desired:
A B C
0 2 3 4
1 5 6 7
2 7 8 9
See in Pandas documentation Indexing: Setting with enlargement.
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Minimizing NExpectation for a custom distribution in Mathematica
...a minimum requires either to set the first derivative of the function zero and solve for a solution. Since your function is quite complicated (and probably not differentiable), the second possibility is to do a numerical minimization, which requires many evaluations of your function. Ergo, it is ver...
How do you list the active minor modes in emacs?
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C-h m or M-x describe-mode shows all the active minor modes (and major mode) and a brief description of each.
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A weighted version of random.choice
I needed to write a weighted version of random.choice (each element in the list has a different probability for being selected). This is what I came up with:
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When should I use Debug.Assert()?
...graduated with a CS degree. I've known about assertions for a while in C++ and C, but had no idea they existed in C# and .NET at all until recently.
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jQuery to retrieve and set selected option value of html select element
I am attempting to retrieve and set the selected value of a select element (drop down list) with jQuery.
9 Answers
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Byte[] to InputStream or OutputStream
...se table, for which I have to use byte[] in my Java program as a mapping and to use this data I have to convert it to InputStream or OutputStream . But I don't know what happens internally when I do so. Can anyone briefly explain me what's happening when I do this conversion?
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