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What does numpy.random.seed(0) do?
...>>> numpy.random.seed(0) ; numpy.random.rand(4)
array([ 0.55, 0.72, 0.6 , 0.54])
>>> numpy.random.seed(0) ; numpy.random.rand(4)
array([ 0.55, 0.72, 0.6 , 0.54])
With the seed reset (every time), the same set of numbers will appear every time.
If the random seed is not res...
Changing the image source using jQuery
... var src = ($(this).attr('src') === 'img1_on.jpg')
? 'img2_on.jpg'
: 'img1_on.jpg';
$(this).attr('src', src);
}
});
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How can I specify a branch/tag when adding a Git submodule?
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
...application. One thing I noticed is that GCC will optimize the call pow(a,2) by compiling it into a*a , but the call pow(a,6) is not optimized and will actually call the library function pow , which greatly slows down the performance. (In contrast, Intel C++ Compiler , executable icc , will ...
Difference in Months between two dates in JavaScript
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Count the number of occurrences of a character in a string in Javascript
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Cast Object to Generic Type for returning
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212
You have to use a Class instance because of the generic type erasure during compilation.
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Truncate all tables in a MySQL database in one command?
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How to calculate the sentence similarity using word2vec model of gensim with python
According to the Gensim Word2Vec , I can use the word2vec model in gensim package to calculate the similarity between 2 words.
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Multiple Updates in MySQL
... DUPLICATE KEY UPDATE.
Using your example:
INSERT INTO table (id,Col1,Col2) VALUES (1,1,1),(2,2,3),(3,9,3),(4,10,12)
ON DUPLICATE KEY UPDATE Col1=VALUES(Col1),Col2=VALUES(Col2);
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