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j'ai fait de la grosse merde! mais tout est rattrapé! Reste plus qu'à

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nettoyer et ranger tout ranger correctement

Conflicts:
	calculus.py
This commit is contained in:
Lafrite 2013-10-28 14:49:31 +01:00
parent ec3e4d34d2
commit 90d5cbee75
2 changed files with 136 additions and 72 deletions
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121
calculus.py
View File

@ -92,7 +92,7 @@ def computePostfix(postfixTokens):
#print(operandeStack) #print(operandeStack)
#print(postfixTokens[i+1:]) #print(postfixTokens[i+1:])
newPostfix = " ".join(operandeStack + postfixTokens[i+1:]) newPostfix = " ".join(operandeStack + postfixTokens[i+1:])
print(postfixToInfix(newPostfix)) #print(postfixToInfix(newPostfix))
else: else:
operandeStack.push(token) operandeStack.push(token)
@ -113,6 +113,8 @@ def computePostfixBis(postfixTokens):
#tokenList = postfixExp.split(" ") #tokenList = postfixExp.split(" ")
tokenList = postfixTokens.copy() tokenList = postfixTokens.copy()
steps = []
# On fait le calcul jusqu'à n'avoir plus qu'un élément # On fait le calcul jusqu'à n'avoir plus qu'un élément
while len(tokenList) > 1: while len(tokenList) > 1:
tmpTokenList = [] tmpTokenList = []
@ -123,6 +125,7 @@ def computePostfixBis(postfixTokens):
op1 = tokenList[0] op1 = tokenList[0]
op2 = tokenList[1] op2 = tokenList[1]
token = tokenList[2] token = tokenList[2]
res = doMath(token, op1, op2) res = doMath(token, op1, op2)
tmpTokenList.append(res) tmpTokenList.append(res)
@ -135,10 +138,14 @@ def computePostfixBis(postfixTokens):
del tokenList[0] del tokenList[0]
tmpTokenList += tokenList tmpTokenList += tokenList
tokenList = expand_list(tmpTokenList)
print(postfixToInfix(tokenList))
return tokenList[0] steps += expand_list(tmpTokenList)
tokenList = steps[-1].copy()
#print(postfixToInfix(tokenList))
return steps
def isNumber(exp): def isNumber(exp):
"""Check if the expression can be a number """Check if the expression can be a number
@ -147,7 +154,7 @@ def isNumber(exp):
:returns: True if the expression can be a number and false otherwise :returns: True if the expression can be a number and false otherwise
""" """
return type(exp) == int return type(exp) == int or type(exp) == Fraction
def isOperation(exp): def isOperation(exp):
"""Check if the expression is an opération in "+-*/" """Check if the expression is an opération in "+-*/"
@ -170,17 +177,19 @@ def doMath(op, op1, op2):
""" """
operations = {"+": "__add__", "-": "__sub__", "*": "__mul__"} operations = {"+": "__add__", "-": "__sub__", "*": "__mul__"}
if op == "/": if op == "/":
return Fraction(op1,op2) ans = [Fraction(op1, op2)]
ans += ans[0].simplify()
return ans
else: else:
return getattr(op1,operations[op])(op2) return getattr(op1,operations[op])(op2)
def postfixToInfix(postfixTokens): def postfixToInfix(postfixTokens):
"""Transforme postfix list of tokens into infix list of tokens """Transforms postfix list of tokens into infix string
:param postfixTokens: a postfix list of tokens :param postfixTokens: a postfix list of tokens
:returns: the corresponding infix list of tokens :returns: the corresponding infix string
""" """
operandeStack = Stack() operandeStack = Stack()
@ -223,6 +232,8 @@ def needPar(operande, operator, posi = "after"):
# Si c'est une grande expression ou un chiffre négatif # Si c'est une grande expression ou un chiffre négatif
stand_alone = get_main_op(operande) stand_alone = get_main_op(operande)
# Si la priorité de l'operande est plus faible que celle de l'opérateur # Si la priorité de l'operande est plus faible que celle de l'opérateur
#debug_var("stand_alone",stand_alone)
#debug_var("operande", type(operande))
minor_priority = priority[get_main_op(operande)] < priority[operator] minor_priority = priority[get_main_op(operande)] < priority[operator]
# Si l'opérateur est -/ pour after ou juste / pour before # Si l'opérateur est -/ pour after ou juste / pour before
special = (operator in "-/" and posi == "after") or (operator in "/" and posi == "before") special = (operator in "-/" and posi == "after") or (operator in "/" and posi == "before")
@ -272,7 +283,7 @@ def expand_list(list_list):
>>> expand_list([1,2,[3,4],5,[6,7,8]]) >>> expand_list([1,2,[3,4],5,[6,7,8]])
[[1, 2, 3, 5, 6], [1, 2, 4, 5, 7], [1, 2, 4, 5, 8]] [[1, 2, 3, 5, 6], [1, 2, 4, 5, 7], [1, 2, 4, 5, 8]]
>>> expand_list([1,2,4,5,6,7,8]) >>> expand_list([1,2,4,5,6,7,8])
[1, 2, 4, 5, 6, 7, 8] [[1, 2, 4, 5, 6, 7, 8]]
""" """
list_in_list = [i for i in list_list if type(i) == list].copy() list_in_list = [i for i in list_list if type(i) == list].copy()
@ -287,10 +298,32 @@ def expand_list(list_list):
ans[i][j] = e[min(i,len(e)-1)] ans[i][j] = e[min(i,len(e)-1)]
# S'il n'y a pas eut d'étapes intermédiaires (2e exemple) # S'il n'y a pas eut d'étapes intermédiaires (2e exemple)
except ValueError: except ValueError:
ans = list_list ans = [list_list]
return ans return ans
def print_steps(steps):
"""Juste print a list
:param steps: @todo
:returns: @todo
"""
print("{first} \t = {sec}".format(first = str_from_postfix(steps[0]), sec = str_from_postfix(steps[1])))
for i in steps[2:]:
print("\t\t = {i}".format(i=str_from_postfix(i)))
def str_from_postfix(postfix):
"""Return the string representing the expression
:param postfix: a postfix ordered list of tokens
:returns: the corresponding string expression
"""
infix = postfixToInfix(postfix)
return infix
def debug_var(name, var): def debug_var(name, var):
"""print the name of the variable and the value """print the name of the variable and the value
@ -312,43 +345,55 @@ def test(exp):
#print("Postfix " , postfix) #print("Postfix " , postfix)
#print(computePostfix(postfix)) #print(computePostfix(postfix))
#print("Bis") #print("Bis")
print(computePostfixBis(postfix)) steps = [postfix]
steps += computePostfixBis(postfix)
print(steps)
print_steps(steps)
#print(postfixToInfix(postfix)) #print(postfixToInfix(postfix))
#print(get_main_op(exp)) #print(get_main_op(exp))
if __name__ == '__main__': if __name__ == '__main__':
exp = "1 + 3 * 5" #exp = "1 + 3 * 5"
#test(exp)
#exp = "2 * 3 * 3 * 5"
#test(exp)
#exp = "2 * 3 + 3 * 5"
#test(exp)
#exp = "2 * ( 3 + 4 ) + 3 * 5"
#test(exp)
#
#exp = "2 * ( 3 + 4 ) + ( 3 - 4 ) * 5"
#test(exp)
#
#exp = "2 * ( 2 - ( 3 + 4 ) ) + ( 3 - 4 ) * 5"
#test(exp)
#
#exp = "2 * ( 2 - ( 3 + 4 ) ) + 5 * ( 3 - 4 )"
#test(exp)
#
#exp = "2 + 5 * ( 3 - 4 )"
#test(exp)
#
#exp = "( 2 + 5 ) * ( 3 - 4 )"
#test(exp)
#
#exp = "( 2 + 5 ) * ( 3 * 4 )"
#test(exp)
#exp = "( 2 + 5 - 1 ) / ( 3 * 4 )"
#test(exp)
exp = "( 2 + 5 ) / ( 3 * 4 ) + 1 / 12"
test(exp) test(exp)
exp = "2 * 3 * 3 * 5" exp = "( 2 + 5 ) / ( 3 * 4 ) + 1 / 2"
test(exp) test(exp)
exp = "2 * 3 + 3 * 5" exp = "( 2 + 5 ) / ( 3 * 4 ) + 1 / 12 + 5 * 5"
test(exp)
exp = "2 * ( 3 + 4 ) + 3 * 5"
test(exp)
exp = "2 * ( 3 + 4 ) + ( 3 - 4 ) * 5"
test(exp)
exp = "2 * ( 2 - ( 3 + 4 ) ) + ( 3 - 4 ) * 5"
test(exp)
exp = "2 * ( 2 - ( 3 + 4 ) ) + 5 * ( 3 - 4 )"
test(exp)
exp = "2 + 5 * ( 3 - 4 )"
test(exp)
exp = "( 2 + 5 ) * ( 3 - 4 )"
test(exp)
exp = "( 2 + 5 ) * ( 3 * 4 )"
test(exp)
exp = "( 2 + 5 - 1 ) / ( 3 * 4 )"
test(exp) test(exp)
#print(expand_list([1,2,['a','b','c'], 3, ['d','e']])) #print(expand_list([1,2,['a','b','c'], 3, ['d','e']]))

87
fraction.py
View File

@ -21,23 +21,25 @@ class Fraction(object):
:returns: steps to simplify the fraction or the fraction if there is nothing to do :returns: steps to simplify the fraction or the fraction if there is nothing to do
""" """
steps = [str(self)] steps = []
if self._denom < 0: if self._denom < 0:
self._num = - self._num self._num = - self._num
self._denom = - self._denom self._denom = - self._denom
steps += [str(self)] steps.append(self)
gcd_ = gcd(abs(self._num), abs(self._denom)) gcd_ = gcd(abs(self._num), abs(self._denom))
if self._num == self._denom: if self._num == self._denom:
self._num = 1 self._num = 1
self._denom = 1 self._denom = 1
steps += [str(self)] steps.append(self)
elif gcd_ != 1: elif gcd_ != 1:
self._num, self._denom = self._num // gcd_ , self._denom // gcd_ self._num, self._denom = self._num // gcd_ , self._denom // gcd_
steps += ["( {reste1} * {gcd} ) / ( {reste2} * {gcd} )".format(reste1 = self._num, reste2 = self._denom, gcd = gcd_)] steps.append("( {reste1} * {gcd} ) / ( {reste2} * {gcd} )".format(reste1 = self._num, reste2 = self._denom, gcd = gcd_))
steps += [str(self)]
# Certainement le truc le plus moche que j'ai jamais fait... On ne met que des strings dans steps puis au dernier moment on met une fraction. C'est moche de ma part
steps.append(self)
return steps return steps
@ -47,6 +49,9 @@ class Fraction(object):
else: else:
return str(self._num) + " / " + str(self._denom) return str(self._num) + " / " + str(self._denom)
def __repr__(self):
return "< Fraction " + self.__str__() + ">"
def __add__(self, other): def __add__(self, other):
if type(other) == Fraction: if type(other) == Fraction:
#cool #cool
@ -54,7 +59,7 @@ class Fraction(object):
else: else:
number = Fraction(other) number = Fraction(other)
steps = ["{frac1} + {frac2}".format(frac1 = self, frac2 = number)] steps = []
if self._denom == number._denom: if self._denom == number._denom:
com_denom = self._denom com_denom = self._denom
@ -66,17 +71,18 @@ class Fraction(object):
coef1 = number._denom // gcd_denom coef1 = number._denom // gcd_denom
coef2 = self._denom // gcd_denom coef2 = self._denom // gcd_denom
steps += ["( {num1} * {coef1} ) / ( {den1} * {coef1} ) + ( {num2} * {coef2} ) / ( {den2} * {coef2} )".format(num1 = self._num, den1 = self._denom, coef1 = coef1, num2 = number._num, den2 = number._denom, coef2 = coef2)] steps.append("( {num1} * {coef1} ) / ( {den1} * {coef1} ) + ( {num2} * {coef2} ) / ( {den2} * {coef2} )".format(num1 = self._num, den1 = self._denom, coef1 = coef1, num2 = number._num, den2 = number._denom, coef2 = coef2))
com_denom = self._denom * coef1 com_denom = self._denom * coef1
num1 = self._num * coef1 num1 = self._num * coef1
num2 = number._num * coef2 num2 = number._num * coef2
steps += ["( {num1} + {num2} ) / {denom}".format(num1 = num1, num2 = num2, denom = com_denom)] steps.append("( {num1} + {num2} ) / {denom}".format(num1 = num1, num2 = num2, denom = com_denom))
num = num1 + num2 num = num1 + num2
ans_frac = Fraction(num, com_denom) ans_frac = Fraction(num, com_denom)
steps.append(ans_frac)
steps += ans_frac.simplify() steps += ans_frac.simplify()
return steps return steps
@ -88,7 +94,7 @@ class Fraction(object):
else: else:
number = Fraction(other) number = Fraction(other)
steps = ["{frac1} - {frac2}".format(frac1 = self, frac2 = number)] steps = []
if self._denom == number._denom: if self._denom == number._denom:
com_denom = self._denom com_denom = self._denom
@ -100,17 +106,18 @@ class Fraction(object):
coef1 = number._denom // gcd_denom coef1 = number._denom // gcd_denom
coef2 = self._denom // gcd_denom coef2 = self._denom // gcd_denom
steps += ["( {num1} * {coef1} ) / ( {den1} * {coef1} ) - ( {num2} * {coef2} ) / ( {den2} * {coef2} )".format(num1 = self._num, den1 = self._denom, coef1 = coef1, num2 = number._num, den2 = number._denom, coef2 = coef2)] steps.append("( {num1} * {coef1} ) / ( {den1} * {coef1} ) - ( {num2} * {coef2} ) / ( {den2} * {coef2} )".format(num1 = self._num, den1 = self._denom, coef1 = coef1, num2 = number._num, den2 = number._denom, coef2 = coef2))
com_denom = self._denom * coef1 com_denom = self._denom * coef1
num1 = self._num * coef1 num1 = self._num * coef1
num2 = number._num * coef2 num2 = number._num * coef2
steps += ["( {num1} - {num2} ) / {denom}".format(num1 = num1, num2 = num2, denom = com_denom)] steps.append("( {num1} - {num2} ) / {denom}".format(num1 = num1, num2 = num2, denom = com_denom))
num = num1 - num2 num = num1 - num2
ans_frac = Fraction(num, com_denom) ans_frac = Fraction(num, com_denom)
steps.append(ans_frac)
steps += ans_frac.simplify() steps += ans_frac.simplify()
return steps return steps
@ -122,13 +129,14 @@ class Fraction(object):
else: else:
number = Fraction(other) number = Fraction(other)
steps = ["( {frac1} ) * ( {frac2} )".format(frac1 = self, frac2 = number)] steps = []
steps += ["( {num1} * {num2} ) / ( {denom1} * {denom2} )".format(num1 = self._num, num2 = number._num, denom1 = self._denom, denom2 = number._denom)] steps.append("( {num1} * {num2} ) / ( {denom1} * {denom2} )".format(num1 = self._num, num2 = number._num, denom1 = self._denom, denom2 = number._denom))
num = self._num * number._num num = self._num * number._num
denom = self._denom * number._denom denom = self._denom * number._denom
ans_frac = Fraction(num, denom) ans_frac = Fraction(num, denom)
steps.append(ans_frac)
steps += ans_frac.simplify() steps += ans_frac.simplify()
return steps return steps
@ -140,18 +148,29 @@ class Fraction(object):
else: else:
number = Fraction(other) number = Fraction(other)
steps = ["( {frac1} ) / ( {frac2} )".format(frac1 = self, frac2 = number)] steps = []
number = Fraction(number._denom, number._num) number = Fraction(number._denom, number._num)
steps += self * number steps += self * number
return steps return steps
def __lt__(self, other):
if type(other) == Fraction:
return (self._num / self._denom) < (other._num / other._denom)
else:
return (self._num / self._denom) < other
def __le__(self, other):
if type(other) == Fraction:
return (self._num / self._denom) <= (other._num / other._denom)
else:
return (self._num / self._denom) <= other
if __name__ == '__main__': if __name__ == '__main__':
f = Fraction(34, 12) f = Fraction(1, 12)
g = Fraction(1,5) g = Fraction(1, 12)
h = Fraction(-1,5) h = Fraction(-1,5)
t = Fraction(-4,5) t = Fraction(-4,5)
print("---------") print("---------")
@ -163,24 +182,24 @@ if __name__ == '__main__':
print("---------") print("---------")
for i in (f + g): for i in (f + g):
print(i) print(i)
print("---------") #print("---------")
for i in (f - g): #for i in (f - g):
print(i) # print(i)
print("---------") #print("---------")
for i in (f * g): #for i in (f * g):
print(i) # print(i)
print("---------") #print("---------")
for i in (h + t): #for i in (h + t):
print(i) # print(i)
print("---------") #print("---------")
for i in (h - t): #for i in (h - t):
print(i) # print(i)
print("---------") #print("---------")
for i in (h * t): #for i in (h * t):
print(i) # print(i)
print("---------") #print("---------")
for i in (h / t): #for i in (h / t):
print(i) # print(i)
#print(f.simplify()) #print(f.simplify())