The TI-89 is a graphing calculator used in advanced mathematics classes and approved for use on examinations like the Scholastic Aptitude Test and various Advanced Placement tests. While its large ...

All products featured on WIRED are independently selected by our editors. However, when you buy something through our retail links, we may earn an affiliate commission. Most powerful TI model allowed ...

Graphing calculators are important tools for students and academics. They can solve complex equations, show you the graph for additional answers, and do stuff that normal calculators can’t do. Most of ...