def __init__(self, data = None):
"""Corrects type of coefficients if necessary."""
if data is None:
data = {}
SummableDict.__init__(self, data)
if self:
convert = self.getElt().parent.ring.convert
for key, value in self.items():
self[key] = convert(value)
def __init__(self, data=None):
if data is None:
data = {}
SummableDict.__init__(self, data)
if self: # if the object is instantialized
convert = self.getElt().parent.ring.convert #?
for key, value in self.items():
self[key] = convert(value)
def __init__(self,data = None):
if data is None:
data = {}
SummableDict.__init__(self,data)
if self: # if the object is instantialized
convert = self.getElt().parent.ring.convert #?
for key,value in self.items():
self[key] = convert(value)
def __rmul__(self, other):
# First try multiplying each coefficient with other, using the function
# in SummableDict.
result = SummableDict.__rmul__(self, other)
if result != NotImplemented:
return result
# Now try to multiply key by other on the left.
result = E0
for k, v in self.items():
prod = safeMultiply(other, k)
if prod is NotImplemented:
return NotImplemented
result += [term * (v * coeff) for term, coeff in prod.items()]
return result
def __rmul__(self, other):
# First try multiplying each coefficient with other, using the function
# in SummableDict.
result = SummableDict.__rmul__(self, other)
if result != NotImplemented:
return result
# Now try to multiply key by other on the left.
result = E0
for k, v in self.items():
prod = safeMultiply(other, k)
if prod is NotImplemented:
return NotImplemented
result += [term * (v * coeff) for term, coeff in prod.items()]
return result
