Question: How to animate fourier approximation of a function (while function itself remains visible)

Hello, first post here, thanks for letting me on the forum. I am trying to visualize fourier approximation. This means that I want an animation of the several functions I get (the first only uses cos(x) and sin(x), the second one also uses cos(2*x) and sin(2*x)...) I managed to do this: [quote] restart;with(plots):f:=piecewise(-Pi
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