# Fourier Series

An illustration of the Fourier Series of a $2\pi$ periodic function. The user can enter his/her own function, or choose one from a drop-down menu. Fourier coefficients are approximated through a discrete Fourier transform (DFT). [b]Technical comment:[/b] The DFT and its inverse are computed in JavaScript (directly from the definition: no FFT!). The same result could be achieved (in an even simpler way) by using list commands...but the resulting applet is slow as hell on tablets and phones!

Resource Type
Activity
Tags
approximation  fourier  functions  practice  sequences-and-series  series
Target Group (Age)
19+
Language
English (United States)

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