Square wave, triangle wave, and rate of convergence
( go to the article → https://www.johndcook.com/blog/2020/05/22/rateoffourierconvergence/ )
There are only a few examples of Fourier series that are relatively easy to compute by hand, and so these examples are used repeatedly in introductions to Fourier series. Any introduction is likely to include a square wave or a triangle wave. By square wave we mean the function that is 1 on [0, 1/2] […]
May 23, 2020, 2:06 a.m.
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