[Pharo-users] mathematical models

[Picci Pharo]

Hi Guys!
I'm going to start to teach as assistant professor of Operative Research, and 
i'd like to teach some stuff of Pharo. I was wondering if there are some 
Packages about mathematical models as Lotka-Volterra or other models about the 
dynamics of biological systems already implemented (with plot too).
Thanks for the help.Paolo