- math
- probability
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- code
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- quantum
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Distances between two multivariate normals
elementary results complementary to the Matrix Cookbook
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A few tricks in probability and statistics (3): Poissonization trick
some tricks are well-known while some are less
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A few tricks in probability and statistics (2): Poisson estimator trick
some tricks are well-known while some are less
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A few tricks in probability and statistics (1): log-derivative trick
some tricks are well-known while some are less
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What is the intuition behind the parameter-shift rule?
$\frac{\pi}{2}$-shift is a good pilot, but let's try any $\epsilon$-shift