@article {MATHEDUC.06443514,
author = {Hoare, Graham},
title = {Fourier series.},
year = {2015},
journal = {SYMmetryplus},
volume = {56},
issn = {1464-7060},
pages = {12},
publisher = {Mathematical Association (MA), Leicester},
abstract = {From the text: Fourier series is a technique for representing any periodic (or repeating) function across the interval $(-\pi ,\pi )$ as an infinite trigonometric series. For example, consider the so-called ``square wave" function alongside its Fourier series. By adding on an additional term each time, we can see how its Fourier series starts to become a very good approximation for the square wave function. Four diagrams show the development of the Fourier series with an additional term in the series being evaluated each time.},
msc2010 = {I30xx (N50xx)},
identifier = {2015d.00767},
}