Solution 27970: Calculating Limits Using the TI-Nspire™ CAS Family Line.
How do I calculate limits using my TI-Nspire CAS handheld and computer software?To calculate limits using the TI-Nspire CAS handheld or computer software, the "Calculator" or "Scratchpad" Application and "Limit" function must be used. Follow the steps below to calculate the limit for the example function.
Example: Find the limit of the function (x+1)/(x-1) as x approaches 3.
• Press [home] [A].
• Press [menu]  
• Press [X] [tab].
• Press  [tab] [tab].
• Press [(] [X] [+] .
• Press [)] [/] [(].
• Press [x] [-]  [)].
• Press [enter].
Please see the TI-Nspire CAS family guidebooks for additional information.