cga.round(3) generates the pseudoscalar which is neither a round nor random

[eric-wieser]

Following the docs example:

>>> from clifford import Cl
>>> from clifford.cga import CGA
>>> g3, blades = Cl(3)
>>> locals().update(blades)
>>> g3c = CGA(g3)
>>> C = g3c.round(3)             # create random sphere

gives nonsense:

>>> C.mv
(1.0^e12345)