TI-89 Graphing Calculator - The powerful CAS (Computer Algebra System) Calculator for high school and university level, with 256 KB RAM of which 188 KB is available to the user and 2 MB of Flash ROM of which 702 KB is available to the user. • CAS (Computer Algebra System) for algebra, calculus and matrix algebra. • Flash Technology enables electronic upgradability for maintenance upgrades and new software download. • 256 KB RAM of which 188 KB is available to the user and 2 MB of Flash ROM of which 702 KB is available to the user. • Analytic and numeric solution of differential equations. • 3-D graphing with rotations. • Constants and unit conversions. • Statistical regressions. • Calculation of eigenvalues and eigenvectors. • Functions of a matrix. • Assembly programming option. • Easy-to-read, high contrast,100 x 160 pixels display. TI-89 GRAPHING 0 33317 19820 7 1-year warranty Connectivity: I/O port enables: 1. the exchange of data and programs with other TI calculators (communication cable included). 2. connection to a PC for data and program exchange TI-GRAPH LINK™ optional. Electronic upgradability Download new software versions and applications (as they become available) to upgrade your hardware platform and customize your calculator. This model has been discontinued. Replacment is the TI-89 Titanium Graphing Calculator. TI-89 Graphing Calculator 10264-TI89 GraphingCalculators.net is Presented by Inman Quests. Please see our info page for contact and shipping information. Shipping via UPS Ground within the 48 contiguous US States is $7.95 for the first item of an order. FREE shipping for each additional item of an order. Next Day Air, 2nd Day Air and 3 Day Select are available for an additional fee calculated at check out. All copyrighted materials (including logos, trademarks, etc.) are property of their respective owners.