do not use np.round in time-dependent str format in array wrapper
do not use np.round in time-dependent str format in array wrapper

anubhavvardhan/qutip,qutip/qutip,cgranade/qutip,anubhavvardhan/qutip,cgranade/qutip,zasdfgbnm/qutip,qutip/qutip,zasdfgbnm/qutip