def __iadd__(self, other):
check_basis(self.basis, other.basis)
self._coeffs += other._coeffs
return self
def __isub__(self, other):
check_basis(self.basis, other.basis)
self._coeffs -= other.coeffs
return self
def __inner__(self, other):
check_basis(self.basis, other.basis)
# TODO: needs to check the gramian too
return np.dot(self.coeffs, other.coeffs)
