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simplify __r*__ in fraction

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Lafrite 2014-05-28 18:49:19 +02:00
parent 900bad53a3
commit 2e80eabb33
1 changed files with 38 additions and 95 deletions
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133
pymath/fraction.py
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@ -108,33 +108,7 @@ class Fraction(object):
def __radd__(self, other): def __radd__(self, other):
number = self.convert2fraction(other) number = self.convert2fraction(other)
steps = [] return number + self
if number._denom == self._denom:
com_denom = number._denom
num1 = number._num
num2 = self._num
else:
gcd_denom = gcd(number._denom, self._denom)
coef1 = self._denom // gcd_denom
coef2 = number._denom // gcd_denom
steps.append([number._num, coef1, "*", number._denom, coef1, "*", '/', self._num, coef2, "*", self._denom, coef2, "*", "/",'+'])
com_denom = number._denom * coef1
num1 = number._num * coef1
num2 = self._num * coef2
steps.append([num1, num2, '+', com_denom, '/'])
num = num1 + num2
ans_frac = Fraction(num, com_denom)
steps.append(ans_frac)
steps += ans_frac.simplify()
return steps
def __sub__(self, other): def __sub__(self, other):
@ -171,33 +145,7 @@ class Fraction(object):
def __rsub__(self, other): def __rsub__(self, other):
number = self.convert2fraction(other) number = self.convert2fraction(other)
steps = [] return number - self
if number._denom == self._denom:
com_denom = number._denom
num1 = number._num
num2 = self._num
else:
gcd_denom = gcd(number._denom, self._denom)
coef1 = self._denom // gcd_denom
coef2 = number._denom // gcd_denom
steps.append([number._num, coef1, "*", number._denom, coef1, "*", '/', self._num, coef2, "*", self._denom, coef2, "*", "/",'-'])
com_denom = number._denom * coef1
num1 = number._num * coef1
num2 = self._num * coef2
steps.append([num1, num2, '-', com_denom, '/'])
num = num1 - num2
ans_frac = Fraction(num, com_denom)
steps.append(ans_frac)
steps += ans_frac.simplify()
return steps
def __neg__(self): def __neg__(self):
return [Fraction(-self._num,self._denom)] return [Fraction(-self._num,self._denom)]
@ -221,18 +169,7 @@ class Fraction(object):
def __rmul__(self, other): def __rmul__(self, other):
number = self.convert2fraction(other) number = self.convert2fraction(other)
steps = [] return number * self
steps.append([number._num, self._num, '*', number._denom, self._denom, '*', '/'])
num = self._num * number._num
denom = self._denom * number._denom
ans_frac = Fraction(num, denom)
steps.append(ans_frac)
steps += ans_frac.simplify()
return steps
def __truediv__(self, other): def __truediv__(self, other):
number = self.convert2fraction(other) number = self.convert2fraction(other)
@ -247,12 +184,7 @@ class Fraction(object):
def __rtruediv__(self, other): def __rtruediv__(self, other):
number = self.convert2fraction(other) number = self.convert2fraction(other)
steps = [] return number / self
self_inv = Fraction(self._denom, self._num)
steps.append([number, self_inv, "/"])
steps += number * self_inv
return steps
def __abs__(self): def __abs__(self):
return Fraction(abs(self._num), abs(self._denom)) return Fraction(abs(self._num), abs(self._denom))
@ -285,32 +217,43 @@ if __name__ == '__main__':
h = Fraction(1,-5) h = Fraction(1,-5)
t = Fraction(4,5) t = Fraction(4,5)
print("---------") print("---------")
print("1 + ", str(h))
for i in (1 + h): for i in (1 + h):
print(i) print(i)
print("---------") print("---------")
#for i in (f + t): print(str(f) , "+", str(t))
# print(i) for i in (f + t):
#print("---------") print(i)
#for i in (f + g): print("---------")
# print(i) print(str(f) , "+", str(g))
#print("---------") for i in (f + g):
#for i in (f - g): print(i)
# print(i) print("---------")
#print("---------") print(str(f) , "-", str(g))
#for i in (f * g): for i in (f - g):
# print(i) print(i)
#print("---------") print("---------")
#for i in (h + t): print(str(f) , "*", str(g))
# print(i) for i in (f * g):
#print("---------") print(i)
#for i in (h - t): print("---------")
# print(i) print(str(h) , "+", str(t))
#print("---------") for i in (h + t):
#for i in (h * t): print(i)
# print(i) print("---------")
#print("---------") print(str(h) , "-", str(t))
#for i in (h / t): for i in (h - t):
# print(i) print(i)
print("---------")
print(str(h) , "*", str(t))
for i in (h * t):
print(i)
print("---------")
# TODO: Bug!! |mer. mai 28 18:48:54 CEST 2014
print(str(h) , "/", str(t))
for i in (h / t):
print(i)
#print(f.simplify()) #print(f.simplify())