


'''simple docstring'''
from __future__ import annotations

from collections.abc import MutableSequence




class        _UpperCamelCase	:


				'''simple docstring'''


				def __init__(     self							,      a_							,      a_							)    ->  None:
					if len(a_							) != degree + 1:
						raise ValueError(
						    "The number of coefficients should be equal to the degree + 1."							)

					lowercase						:		list[float]   					=		list(a_							)
					lowercase						:		Any   					=		degree

				def __add__(     self							,      a_							)    ->  Polynomial:

					if self.degree > polynomial_a.degree:
						lowercase						:		List[str]   					=		self.coefficients[:]
						for i in range(polynomial_a.degree + 1							):
							coefficients[i] += polynomial_a.coefficients[i]
						return Polynomial(self.degree							,      a_							)
					else:
						lowercase						:		Optional[Any]   					=		polynomial_a.coefficients[:]
						for i in range(self.degree + 1							):
							coefficients[i] += self.coefficients[i]
						return Polynomial(polynomial_a.degree							,      a_							)

				def __sub__(     self							,      a_							)    ->  Polynomial:
					return self + polynomial_a * Polynomial(0							,      [-1]							)

				def __neg__(     self							)    ->  Polynomial:
					return Polynomial(self.degree							,      [-c for c in self.coefficients]							)

				def __mul__(     self							,      a_							)    ->  Polynomial:
					lowercase						:		list[float]   					=		[0] * (self.degree + polynomial_a.degree + 1)
					for i in range(self.degree + 1							):
						for j in range(polynomial_a.degree + 1							):
							coefficients[i + j] += (
							    self.coefficients[i] * polynomial_a.coefficients[j]
							)

					return Polynomial(self.degree + polynomial_a.degree							,      a_							)

				def 	a__		(     self							,      a_							)    ->  int | float:
					lowercase						:		int | float   					=		0
					for i in range(self.degree + 1							):
						result += self.coefficients[i] * (substitution**i)
					return result

				def __str__(     self							)    ->  str:
					lowercase						:		Dict   					=		""
					for i in range(self.degree							,      -1							,      -1							):
						if self.coefficients[i] == 0:
							continue
						elif self.coefficients[i] > 0:
							if polynomial:
								polynomial += " + "
						else:
							polynomial += " - "

						if i == 0:
							polynomial += str(abs(self.coefficients[i]							)							)
						elif i == 1:
							polynomial += str(abs(self.coefficients[i]							)							) + "x"
						else:
							polynomial += str(abs(self.coefficients[i]							)							) + "x^" + str(a_							)

					return polynomial

				def __repr__(     self							)    ->  str:
					return self.__str__()

				def 	a__		(     self							)    ->  Polynomial:
					lowercase						:		list[float]   					=		[0] * self.degree
					for i in range(self.degree							):
						lowercase						:		Tuple   					=		self.coefficients[i + 1] * (i + 1)
					return Polynomial(self.degree - 1							,      a_							)

				def 	a__		(     self							,      a_ = 0							)    ->  Polynomial:
					lowercase						:		list[float]   					=		[0] * (self.degree + 2)
					lowercase						:		Union[str, Any]   					=		constant
					for i in range(self.degree + 1							):
						lowercase						:		Union[str, Any]   					=		self.coefficients[i] / (i + 1)
					return Polynomial(self.degree + 1							,      a_							)

				def __eq__(     self							,      a_							)    ->  bool:
					if not isinstance(a_							,      a_							):
						return False

					if self.degree != polynomial_a.degree:
						return False

					for i in range(self.degree + 1							):
						if self.coefficients[i] != polynomial_a.coefficients[i]:
							return False

					return True


				def __ne__(     self							,      a_							)    ->  bool:
					return not self.__eq__(a_							)






'''simple docstring'''
from typing import TYPE_CHECKING

from ....utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available


lowerCAmelCase   : Dict             =				{"""configuration_van""": ["""VAN_PRETRAINED_CONFIG_ARCHIVE_MAP""", """VanConfig"""]}


try:
					if not is_torch_available():
										raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
					pass
else:
					lowerCAmelCase   : int             =				[
					    """VAN_PRETRAINED_MODEL_ARCHIVE_LIST""",
					    """VanForImageClassification""",
					    """VanModel""",
					    """VanPreTrainedModel""",
					]

if TYPE_CHECKING:
					from .configuration_van import VAN_PRETRAINED_CONFIG_ARCHIVE_MAP, VanConfig

					try:
										if not is_torch_available():
															raise OptionalDependencyNotAvailable()
					except OptionalDependencyNotAvailable:
										pass
					else:
										from .modeling_van import (
										    VAN_PRETRAINED_MODEL_ARCHIVE_LIST,
										    VanForImageClassification,
										    VanModel,
										    VanPreTrainedModel,
										)

else:
					import sys

					lowerCAmelCase   : Tuple             =				_LazyModule(__name__, globals()["""__file__"""], _import_structure)


