def _toex(other):
"""Converts other to GiNaC::ex.
"""
if isinstance(other, (float, int)):
return _g.numeric(other)
elif isinstance(other, (Symbol, Expr, Matrix, Vector)):
return other.data
elif isinstance(other, (_g.basic)):
return other
elif isinstance(other, str):
print "Can not convert a string to symbolic type"
return _g.numeric(other)
elif isinstance(other, list):
return [_toex(x) for x in other]
def dotest(self,s):
def t(a,b):
s(a,b)
s(b,a)
a=g.numeric(2)
b=g.numeric("1.3")
c=g.symbol("x")
d=g.symbol("y")
e=pow(c,d)*d
f=5
h=5.5
t(a,a)
t(a,b)
t(a,c)
t(a,d)
t(a,e)
t(a,f)
t(a,h)
t(b,b)
t(b,c)
t(b,d)
t(b,e)
t(b,f)
t(b,h)
t(c,c)
t(c,d)
t(c,e)
t(c,f)
t(c,h)
t(d,d)
t(d,e)
t(d,f)
t(d,h)
t(e,e)
t(e,f)
t(e,h)
t(f,f)
t(f,h)
t(h,h)
def __neg__(self):
neg = _g.numeric('-1')
return self.__mul__(Expr(neg))
def __init__(self, data = _g.numeric(0), symbs = None, time = None):
self.data = _toex(data)
self.spatial_symbs = symbs
self.time = time
self._string = None
self._lhs = []