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var('t,k'); f=exp(-(-t+k)^2)*sin(2*pi*(t+k))
cm=sample(['hsv','bwr','cool','jet'],1)[0]
c=[colormaps[cm](25*i)[:3] for i in range(10)]
fragments=[plot(f(t=t,k=k),(t,-3,3),fill='axis',
fillcolor=c[k]) for k in range(7)]
animate(fragments,title=cm,gridlines=True,
xmin=-3,xmax=3,ymin=-1,ymax=1)
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