Mac users interested in Ti nspire student software v3.1 generally download:
Take what you've started in class on the handheld and finish on your home PC or Mac® computer. Transfer class assignments from calculator to computer. Complete your work outside of school – at home, on the bus, in the library... wherever you want. With TI-Nspire Student Software (and the new TI-Nspire CX graphing calculator), see how concepts relate to graphs and geometric objects