def simplify(self, deep=False, **kwargs):
if self.arg.is_Mul:
coeff = []
args = []
for arg in self.arg.args:
if arg.shape:
args.append(arg)
else:
coeff.append(arg)
if coeff:
Mul = self.arg.func
return abs(Mul(*coeff)) * self.func(Mul(*args))
return Function.simplify(self, deep=deep, **kwargs)
