I still often use a TI-89 I bought in 1999. I also bought my daughter a used TI-86 and she uses it daily. Both are way nicer to use than the calculators on our phones.
I agree. I have my TI-89 from college that I use at work. Unfortunately I work in a lab and spilled a solution on it after nearly 2 decades of use and now the + button doesn't respond most of the time. What a drag!
dillydogg|2 years ago