'''simple docstring'''




from collections.abc import Callable

__snake_case   :      Optional[int]						    =  Callable[[float], float]  # type alias for a real -> real function





def      _UpperCAmelCase    (							_UpperCamelCase    :	RealFunc,   _UpperCamelCase    :	RealFunc,   _UpperCamelCase    :	int,   )	->      float:
    A_     =   float(_UpperCamelCase   )
    while True:
        try:
            A_     =   prev_guess - function(_UpperCamelCase   ) / derivative(_UpperCamelCase   )
        except ZeroDivisionError:
            raise ZeroDivisionError('''Could not find root'''   ) from None
        if abs(prev_guess - next_guess   ) < 10**-5:
            return next_guess
        A_     =   next_guess





def      _UpperCAmelCase    (							_UpperCamelCase    :	float   )	->      float:
    return (x**3) - (2 * x) - 5





def      _UpperCAmelCase    (							_UpperCamelCase    :	float   )	->      float:
    return 3 * (x**2) - 2


if __name__ == "__main__":
  print(newton(f, fa, 3))







'''simple docstring'''




from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_sentencepiece_available, is_tokenizers_available


__snake_case   :      Optional[int]						    =  {}

try:
  if not is_sentencepiece_available():
    raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
  pass
else:
  __snake_case   :      Optional[Any]						    =  ['MBart50Tokenizer']

try:
  if not is_tokenizers_available():
    raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
  pass
else:
  __snake_case   :      Dict						    =  ['MBart50TokenizerFast']


if TYPE_CHECKING:
  try:
    if not is_sentencepiece_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    from .tokenization_mbartaa import MBartaaTokenizer

  try:
    if not is_tokenizers_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    from .tokenization_mbartaa_fast import MBartaaTokenizerFast

else:
  import sys

  __snake_case   :      Tuple						    =  _LazyModule(__name__, globals()['__file__'], _import_structure, module_spec=__spec__)






