One can insert LaTeX inline math, surrounded by single ‘$’ signs, or displayed math, surrounded by double ‘$$’ signs, directly inside sections.
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# Some shorter inline equation $e^{ix} = \cos x + i\sin x$.
#
# Or more complicated formulas as displayed math:
# $$e^x = \lim_{n\rightarrow\infty}\left(1+\dfrac{x}{n}\right)^{n}.$$