Usage Information for many calculators is at
Prof. Peltier's Site
at Saint Mary's College
The web pages below on
TI-81
| TI-82
| TI-83
| TI-85
| TI-86
| TI-89
| TI-92
on one and two variable data seem to be easy to follow.
Online Manuals:
TI-83 |
TI-86 |
TI-89
or 92
Last Update: Jun. 23, 2008