Mapytex/mapytex/calculus/API/tokens/polynomial.py

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#! /usr/bin/env python
# -*- coding: utf-8 -*-
# vim:fenc=utf-8
#
# Copyright © 2017 lafrite <lafrite@Poivre>
#
# Distributed under terms of the MIT license.
"""
Tokens representing polynomials functions
"""
from .token import Token
from ...core.MO import MO
__all__ = ["Polynomial", "Quadratic", "Linear"]
class Polynomial(Token):
""" Token representing a polynomial """
def __init__(self, a, name="", ancestor=None):
if not isinstance(a, MO):
if isinstance(a, str):
raise TypeError
else:
raise TypeError
else:
mo = a
Token.__init__(self, mo, name, ancestor)
self._mathtype = 'polynome'
@classmethod
def from_mo(cls, mo, name="", ancestor=None):
return cls(mo, name, ancestor)
@classmethod
def random(cls):
raise NotImplemented
def __setitem__(self, key, item):
""" Use Polynomial like if they were a dictionnary to set coefficients """
pass
def __getitem__(self, key):
""" Use Polynomial like if they were a dictionnary to get coefficients """
pass
def __call__(self, value):
""" Call a Polynomial to evaluate itself on value """
pass
class Linear(Polynomial):
""" Token representing a linear """
def __init__(self, mo, name="", ancestor=None):
Polynomial.__init__(self, mo, name, ancestor)
self._mathtype = 'affine'
@classmethod
def random(cls):
raise NotImplemented
class Quadratic(Polynomial):
""" Token representing a quadratic """
def __init__(self, mo, name="", ancestor=None):
Polynomial.__init__(self, mo, name, ancestor)
self._mathtype = 'polynome du 2nd degré'
@classmethod
def random(cls):
raise NotImplemented
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