TI Nspire from Texas Instruments is a new handheld graphing calculator destined to math students who need a handy and powerful processing tool during courses.The calculator features a large display, controls imitating a mouse experience, spreadsheet capabilities like when using a laptop computer, and all are permitted during SAT, ACT and AP tests.Students can store their work on it as well as access free test preparation software from The Princeton Review and 25 minutes of free online homework help provided by Tutor.com.