Texas Instruments has introduced two updates to its high-end TI-Nspire line of graphing calculators, the new TI-Nspire with Touchpad and TI-Nspire CAS with Touchpad.

The TI-Nspire CX handheld is permitted for use SAT*, AP*, PSAT/NSMQT*, IB®, and ACT® college entrance exams, as well as many state standardized tests. Students can even download sample SAT and ACT ...