Ars Technica

TI-89 questions

I had to give back a loaned TI-83+ in June, and I purchased a TI-89 to replace it. I've figured out how to do most things, except these two which are really annoying me:<BR><BR>1. Cubic and higher ...
Ars Technica

Ti-89 worse than Ti-85. Complex numbers

Ok, here's the deal. I bought a Ti-89 thinking it would be the end all of calculators, better than my Ti-85 in every way. Well, it is, all but one annoying thing. It has no idea how to deal with ...