%sh touch österreich
111
111
xx = 111 xx
111
%python import sympy as sy z = sy.Symbol("z", complex=True) sy.roots(1-3*z+z**2)
{sqrt(5)/2 + 3/2: 1, -sqrt(5)/2 + 3/2: 1}
z.is_complex
True
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complex_plot(x^(1/3), (-5, 5), (-5, 5))
