You can choose between two versions of the simulation:
Sort of 3D animated, shows every step of sorting the yarrow stalks. You can change animation speed, or even disable it altogether, at any time during the consultation.
The older version of the simulation, definitely 2D, shows only the result of each sorting.
Both simulations allow to read the text of each resulting hexagram in two different translations:
The classic Wilhelm-Baynes:
Richard Wilhelm's and Cary F. Baynes translation "I Ching: Or, Book of Changes"
[
3rd. ed., Bollingen Series XIX, (Princeton NJ: Princeton University Press, 1967, 1st ed. 1950)]
An outstanding, strictly contemporary work, freely available online:
Yi Jing, book of sun and moon (by LiSe Heyboer)
(LiSe's site now includes two more versions of Virtual yarrow stalks, specially
dedicated to her translation.)
If you want to learn the yarrow stalks method you can read the explanations on I Ching with Clarity (a site with a self-explanatory name...) and Earth Heart (where you can also find some good quality real yarrow stalks).
Finally, for both versions of the simulation, be aware that: