Add a name to polynoms
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@ -33,7 +33,7 @@ class Polynom(Explicable):
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"""Docstring for Polynom. """
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"""Docstring for Polynom. """
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@classmethod
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@classmethod
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def random(self, coefs_form=[], conditions=[], letter = "x", degree = 0):
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def random(self, coefs_form=[], conditions=[], letter = "x", degree = 0, name = "P"):
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""" Create a random polynom from coefs_form and conditions
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""" Create a random polynom from coefs_form and conditions
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:param coefs_form: list of forms (one by coef) (ascending degree sorted)
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:param coefs_form: list of forms (one by coef) (ascending degree sorted)
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@ -64,9 +64,9 @@ class Polynom(Explicable):
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# On "parse" ce string pour créer les coefs
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# On "parse" ce string pour créer les coefs
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coefs = [eval(i) if type(i)==str else i for i in eval(coefs)]
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coefs = [eval(i) if type(i)==str else i for i in eval(coefs)]
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# Création du polynom
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# Création du polynom
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return Polynom(coef = coefs, letter = letter)
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return Polynom(coef = coefs, letter = letter, name = name)
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def __init__(self, coef = [1], letter = "x" ):
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def __init__(self, coef = [1], letter = "x", name = "P"):
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"""Initiate the polynom
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"""Initiate the polynom
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:param coef: coefficients of the polynom (ascending degree sorted)
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:param coef: coefficients of the polynom (ascending degree sorted)
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@ -75,9 +75,15 @@ class Polynom(Explicable):
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- [a,b,c]: list of coeficient for same degree. [1,[2,3],4] designate 1 + 2x + 3x + 4x^2
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- [a,b,c]: list of coeficient for same degree. [1,[2,3],4] designate 1 + 2x + 3x + 4x^2
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- a: a Expression. [1, Expression("2+3"), 4] designate 1 + (2+3)x + 4x^2
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- a: a Expression. [1, Expression("2+3"), 4] designate 1 + (2+3)x + 4x^2
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:param letter: the string describing the unknown
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:param letter: the string describing the unknown
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:param name: Name of the polynom
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>>> Polynom([1, 2, 3]).mainOp
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>>> P = Polynom([1, 2, 3])
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>>> P.mainOp
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'+'
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'+'
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>>> P.name
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'P'
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>>> P._letter
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'x'
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>>> Polynom([1]).mainOp
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>>> Polynom([1]).mainOp
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'*'
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'*'
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>>> Polynom([0, 0, 3]).mainOp
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>>> Polynom([0, 0, 3]).mainOp
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@ -86,10 +92,13 @@ class Polynom(Explicable):
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'x'
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'x'
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>>> Polynom([1, 2, 3], "y")._letter
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>>> Polynom([1, 2, 3], "y")._letter
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'y'
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'y'
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>>> Polynom([1, 2, 3], name = "Q").name
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'Q'
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"""
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"""
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super(Polynom, self).__init__()
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super(Polynom, self).__init__()
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self.feed_coef(coef)
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self.feed_coef(coef)
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self._letter = letter
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self._letter = letter
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self.name = name
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if self.is_monom():
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if self.is_monom():
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@ -408,6 +417,8 @@ class Polynom(Explicable):
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>>> Q = P.derivate()
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>>> Q = P.derivate()
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>>> Q
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>>> Q
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< Polynom [2, 6]>
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< Polynom [2, 6]>
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>>> print(Q.name)
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P'
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>>> for i in Q.explain():
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>>> for i in Q.explain():
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... print(i)
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... print(i)
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2 \\times 3 x + 1 \\times 2
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2 \\times 3 x + 1 \\times 2
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@ -416,7 +427,10 @@ class Polynom(Explicable):
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derv_coefs = []
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derv_coefs = []
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for (i,c) in enumerate(self._coef):
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for (i,c) in enumerate(self._coef):
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derv_coefs += [Expression([i, c, op.mul])]
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derv_coefs += [Expression([i, c, op.mul])]
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return Polynom(derv_coefs[1:]).simplify()
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ans = Polynom(derv_coefs[1:]).simplify()
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ans.name = self.name + "'"
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return ans
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@staticmethod
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@staticmethod
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def postfix_add(numbers):
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def postfix_add(numbers):
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@ -13,12 +13,12 @@ class Polynom_deg2(Polynom):
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Child of Polynom with some extra tools
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Child of Polynom with some extra tools
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"""
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"""
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def __init__(self, coefs = [0, 0, 1], letter = "x"):
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def __init__(self, coefs = [0, 0, 1], letter = "x", name = "P"):
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if len(coefs) < 3 or len(coefs) > 4:
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if len(coefs) < 3 or len(coefs) > 4:
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raise ValueError("Polynom_deg2 have to be degree 2 polynoms, they need 3 coefficients, {} are given".format(len(coefs)))
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raise ValueError("Polynom_deg2 have to be degree 2 polynoms, they need 3 coefficients, {} are given".format(len(coefs)))
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if coefs[2] == 0:
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if coefs[2] == 0:
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raise ValueError("Polynom_deg2 have to be degree 2 polynoms, coefficient of x^2 can't be 0")
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raise ValueError("Polynom_deg2 have to be degree 2 polynoms, coefficient of x^2 can't be 0")
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Polynom.__init__(self, coefs, letter)
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Polynom.__init__(self, coefs, letter, name = name)
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@property
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@property
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def a(self):
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def a(self):
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