Feat(MO): Initiate MOpolynomial
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@ -27,23 +27,23 @@ class MOstrPower(MO):
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<MOstrPower x^2>
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>>> MOstrPower(3, 1)
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Traceback (most recent call last):
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...
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...
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mapytex.calculus.core.MO.exceptions.MOError: The variable of a monomial should be convertible into MOstr
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>>> MOstrPower("x", 0)
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Traceback (most recent call last):
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...
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...
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mapytex.calculus.core.MO.exceptions.MOError: The power of a MOstrPower should be greater than 1
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>>> MOstrPower("x", 1)
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Traceback (most recent call last):
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...
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...
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mapytex.calculus.core.MO.exceptions.MOError: The power of a MOstrPower should be greater than 1
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>>> MOstrPower("x", -2)
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Traceback (most recent call last):
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...
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...
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mapytex.calculus.core.MO.exceptions.MOError: The power of a MOstrPower should be greater than 1
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>>> MOstrPower("x", 2.4)
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Traceback (most recent call last):
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...
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...
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mapytex.calculus.core.MO.exceptions.MOError: The power of a monomial should be a integer
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"""
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@ -58,11 +58,12 @@ class MOstrPower(MO):
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elif not isinstance(_power._tree, int):
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raise MOError("The power of a monomial should be a integer")
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self._power = _power
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_tree = Tree("^",
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self._variable,
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self._power
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)
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self._power,
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)
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MO.__init__(self, _tree)
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@property
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@ -77,11 +78,12 @@ class MOMonomial(MO):
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""" Monomial math object"""
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def __init__(self, coefficient, variable):
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def __init__(self, coefficient, variable, power=1):
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""" Initiate the MOMonomial
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:param coefficient: coefficient of the monomial (a non zero constant)
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:param variable: variable of the monomial (a MOstr or later a MOSqrt)
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:param variable: variable of the monomial (a MOstr, a MOstrPower)
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:param power: degree of the monomial
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>>> x = MOstr('x')
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>>> MOMonomial(4, x)
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@ -99,15 +101,28 @@ class MOMonomial(MO):
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raise MOError("The coefficient of a monomial should not be 0")
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self._coefficient = _coefficient
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if not isinstance(variable, (MOstr, MOstrPower)):
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raise
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self._variable = variable
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if isinstance(variable, MOstrPower):
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_variable = variable.variable
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_power = MO.factory(variable.power.value * power)
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elif isinstance(variable, MOstr):
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_variable = variable
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_power = MO.factory(power)
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else:
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raise MOError(f"variable need to be a MOstrPower or a MOstr. Got {type(variable)}.")
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_tree = Tree("*",
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self._coefficient,
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self._variable
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self._variable = _variable
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self._power = _power
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)
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if self._power == 1:
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_tree = Tree("*",
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self._coefficient,
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self._variable
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)
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else:
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_tree = Tree("*",
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self._coefficient,
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MOstrPower(self._variable, self._power)
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)
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MO.__init__(self, _tree)
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@ -117,21 +132,15 @@ class MOMonomial(MO):
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@property
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def strpower(self):
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if isinstance(self._variable, MOstr):
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return self._variable
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return self._variable
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return MOstrPower(self._variable, self._power)
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@property
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def variable(self):
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if isinstance(self._variable, MOstr):
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return self._variable
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return self._variable.variable
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return self._variable
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@property
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def power(self):
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if isinstance(self._variable, MOstr):
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return 1
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return self._variable.power
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return self._power
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# -----------------------------
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# Reglages pour 'vim'
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@ -10,6 +10,7 @@ from mapytex.calculus.core.tree import Tree
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from .mo import MO, MOnumber, MOstr
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from .exceptions import MOError
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from ..renders import tree2txt, tree2tex
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from .monomial import MOMonomial
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__all__ = ["MOpolynomial"]
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@ -25,13 +26,13 @@ class MOpolynomial(MO):
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:example:
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>>> MOpolynomial('x', [1, 2, 3])
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3x^2 + 2x + 1
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<MOpolynomial 3x^2 + 2x + 1>
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>>> MOpolynomial('x', [1, 0, 3])
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3x^2 + 1
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<MOpolynomial 3x^2 + 1>
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>>> MOpolynomial('x', {0: 1, 1: 2, 2: 3})
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3x^2 + 2x + 1
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<MOpolynomial 3x^2 + 2x + 1>
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>>> MOpolynomial('x', {0: 1, 3: 4})
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4x^3 + 1
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<MOpolynomial 4x^3 + 1>
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"""
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@ -41,24 +42,26 @@ class MOpolynomial(MO):
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self._variable = _variable
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if isinstance(coefs, dict):
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_coefs = {MO.factory(d): MO.factory(c) for (d, c) in coefs}
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_coefs = {MO.factory(d): MO.factory(c) for (d, c) in coefs.items()
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if c != 0 }
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elif isinstance(coefs, list):
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_coefs = {MO.factory(d): MO.factory(c) for (d, c) in enumerate(coefs)}
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_coefs = {MO.factory(d): MO.factory(c) for (d, c) in enumerate(coefs)
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if c != 0 }
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else:
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raise TypeError("Coefs needs to be a dictionnary or a list")
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self._coefs = _coefs
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monomials = []
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for deg, coef in self._coefs:
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for deg, coef in self._coefs.items():
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if deg == 0:
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monomials.append(coef)
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elif deg == 1:
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monomials.append(coef)
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value = Tree("^",
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self._variable,
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self._power
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)
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MO.__init__(self, value)
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else:
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monomials.append(
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MOMonomial(coef, self._variable, deg)
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)
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tree = Tree.from_list("+", monomials[::-1])
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MO.__init__(self, tree)
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@property
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def variable(self):
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