This link doesn't appear to work, and we have no local backup of it :( <br/>You can try it anyway: <a href='http://education.ti.com/downloads/guidebooks/ti-nspire/TI-Nspire_Guide_Part1_FR.pdf'>http://education.ti.com/downloads/guidebooks/ti-nspire/TI-Nspire_Guide_Part1_FR.pdf</a>