晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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sh-3ll 1.0
DIR:/opt/cloudlinux/venv/lib/python3.11/site-packages/numpy/polynomial/
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Current File : //opt/cloudlinux/venv/lib/python3.11/site-packages/numpy/polynomial/_polybase.pyi
import abc
from typing import Any, ClassVar

__all__: list[str]

class ABCPolyBase(abc.ABC):
    __hash__: ClassVar[None]  # type: ignore[assignment]
    __array_ufunc__: ClassVar[None]
    maxpower: ClassVar[int]
    coef: Any
    @property
    def symbol(self) -> str: ...
    @property
    @abc.abstractmethod
    def domain(self): ...
    @property
    @abc.abstractmethod
    def window(self): ...
    @property
    @abc.abstractmethod
    def basis_name(self): ...
    def has_samecoef(self, other): ...
    def has_samedomain(self, other): ...
    def has_samewindow(self, other): ...
    def has_sametype(self, other): ...
    def __init__(self, coef, domain=..., window=..., symbol: str = ...) -> None: ...
    def __format__(self, fmt_str): ...
    def __call__(self, arg): ...
    def __iter__(self): ...
    def __len__(self): ...
    def __neg__(self): ...
    def __pos__(self): ...
    def __add__(self, other): ...
    def __sub__(self, other): ...
    def __mul__(self, other): ...
    def __truediv__(self, other): ...
    def __floordiv__(self, other): ...
    def __mod__(self, other): ...
    def __divmod__(self, other): ...
    def __pow__(self, other): ...
    def __radd__(self, other): ...
    def __rsub__(self, other): ...
    def __rmul__(self, other): ...
    def __rdiv__(self, other): ...
    def __rtruediv__(self, other): ...
    def __rfloordiv__(self, other): ...
    def __rmod__(self, other): ...
    def __rdivmod__(self, other): ...
    def __eq__(self, other): ...
    def __ne__(self, other): ...
    def copy(self): ...
    def degree(self): ...
    def cutdeg(self, deg): ...
    def trim(self, tol=...): ...
    def truncate(self, size): ...
    def convert(self, domain=..., kind=..., window=...): ...
    def mapparms(self): ...
    def integ(self, m=..., k = ..., lbnd=...): ...
    def deriv(self, m=...): ...
    def roots(self): ...
    def linspace(self, n=..., domain=...): ...
    @classmethod
    def fit(cls, x, y, deg, domain=..., rcond=..., full=..., w=..., window=...): ...
    @classmethod
    def fromroots(cls, roots, domain = ..., window=...): ...
    @classmethod
    def identity(cls, domain=..., window=...): ...
    @classmethod
    def basis(cls, deg, domain=..., window=...): ...
    @classmethod
    def cast(cls, series, domain=..., window=...): ...