stacionární body

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y=var('y')
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def stac_body(FUN):
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    pretty_print("Zadaná funkce:", FUN)
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    sols=solve([diff(FUN,x),diff(FUN,y)],[x,y], solution_dict=True)
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    real_sols = [sol for sol in sols if all(v in RR for v in sol.values())]
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    pretty_print("stacionární body:", real_sols)
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