f : function
Python function returning a number. f must be continuous, and f(a) and
f(b) must have opposite signs.
a : number
One end of the bracketing interval [a,b].
b : number
The other end of the bracketing interval [a,b].
xtol : number, optional
The routine converges when a root is known to lie within xtol of the
value return. Should be >= 0. The routine modifies this to take into
account the relative precision of doubles.
maxiter : number, optional
if convergence is not achieved in maxiter iterations, and error is
raised. Must be >= 0.
args : tuple, optional
containing extra arguments for the function f.
f is called by apply(f, (x)+args).
full_output : bool, optional
If full_output is False, the root is returned. If full_output is
True, the return value is (x, r), where x is the root, and r is
a RootResults object.
disp : {True, bool} optional
If True, raise RuntimeError if the algorithm didn’t converge.
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