minimize(method=’Newton-CG’) — SciPy v1.15.2 Manual (original) (raw)

scipy.optimize.minimize(fun, x0, args=(), method=None, jac=None, hess=None, hessp=None, bounds=None, constraints=(), tol=None, callback=None, options=None)

Minimization of scalar function of one or more variables using the Newton-CG algorithm.

Note that the jac parameter (Jacobian) is required.

Options:

——-

dispbool

Set to True to print convergence messages.

xtolfloat

Average relative error in solution xopt acceptable for convergence.

maxiterint

Maximum number of iterations to perform.

epsfloat or ndarray

If hessp is approximated, use this value for the step size.

return_allbool, optional

Set to True to return a list of the best solution at each of the iterations.

c1float, default: 1e-4

Parameter for Armijo condition rule.

c2float, default: 0.9

Parameter for curvature condition rule.

Notes

Parameters c1 and c2 must satisfy 0 < c1 < c2 < 1.