Formula:227

Digital Library of Mathematical Functions ID 1.8.E3

${\displaystyle{\displaystyle f(x)=\sum^{\infty}_{n=-\infty}c_{n}e^{inx},}}$

Symbols List

• ${\displaystyle{\displaystyle\mathrm{e}}}$: base of natural logarithm
• ${\displaystyle{\displaystyle\mathrm{i}}}$: imaginary unit
• ${\displaystyle{\displaystyle n}}$: nonnegative integer
 

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