# Differential Equations

Placeholder for eventual entry. Testing that I can edit

# Learned Perplexity

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$\oint_0^1 f(x) \, \mathrm{d} x$

$\int_0^1 f(x) \, \mathrm{d} x$

$\displaystyle \sum_{n=1}^\infty \frac{1}{n^2} = \frac{\pi^2}{6}.$

$i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>$