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/ optimize / cython_optimize / c_zeros.pxd
cdef extern from "../Zeros/zeros.h":
ctypedef double (*callback_type)(double, void*)
ctypedef struct scipy_zeros_info:
int funcalls
int iterations
int error_num
cdef extern from "../Zeros/bisect.c" nogil:
double bisect(callback_type f, double xa, double xb, double xtol,
double rtol, int iter, void *func_data,
scipy_zeros_info *solver_stats)
cdef extern from "../Zeros/ridder.c" nogil:
double ridder(callback_type f, double xa, double xb, double xtol,
double rtol, int iter, void *func_data,
scipy_zeros_info *solver_stats)
cdef extern from "../Zeros/brenth.c" nogil:
double brenth(callback_type f, double xa, double xb, double xtol,
double rtol, int iter, void *func_data,
scipy_zeros_info *solver_stats)
cdef extern from "../Zeros/brentq.c" nogil:
double brentq(callback_type f, double xa, double xb, double xtol,
double rtol, int iter, void *func_data,
scipy_zeros_info *solver_stats)