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We want to make this tree by using fractal.
sage: T = sum(Cone(exp(-n/5), 4/3*exp(-n/5), ....: color=(0, .5, 0)).translate(0, 0, -3*exp(-n/5)) ....: for n in [1 .. 7]) sage: T += Cone(1/8, 1, color='brown').translate(0, 0, -3) sage: T.show(aspect_ratio=1, frame=False)
We find this code. but error we want to get 3D tree graph.