Revision: Ito calculus
Stochastic process: $X(t), t\in[0,\infty)$
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Integer Reciprocal and Geometric Series
Note that
In fact, we have
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Opposite of a Bloom Filter
Bloom filter gives a $O(1)$-efficient way to test for set memberships, but with false positives and no false negatives, i.e. it will tell you $x\in S$ while actually it is not, but not vice versa.
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e and π
Comparing $e^{\pi}$ and $\pi^e$.
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Volume of n-ball
If we denote the Cartesian coordinate of a $n$-dimensional Euclidean space by a
$n$-vector $\mathbf{x}$, then a $n$-ball centered at the origin with radius $r$
is the set of points that satisfy
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