I guess there might be some mistake in my code, but I cannot use plot_vector_field3d and show the result with three.js viewer. The code is
var('x y z')
f = (x, y, z)
show(plot_vector_field3d(f, (x,-3,3), (y,-3,3), (z,-3,3), aspect_ratio=1), viewer='threejs')
and it only shows an empty box. How to explain this behaviour?
