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Results tagged with ca.classical-analysis-and-odes
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user 173456
Special functions, orthogonal polynomials, harmonic analysis, ordinary differential equations (ODE's), differential relations, calculus of variations, approximations, expansions, asymptotics.
15
votes
Is there any use for $\sin(\sin x)$?
The characteristic function for the Poisson distribution is given by
$$
e^{\lambda\left(e^{i\theta}-1\right)}=e^{\lambda\left(\cos\theta-1\right)}\left(\cos(\lambda\sin\theta)+i\sin(\lambda\sin\theta) …