The Texas Instruments TI-89 Titanium Graphing Calculator is a handheld device powered by batteries. With a regular size LCD display, this graphing calculator is designed for students and professionals in fields that require advanced mathematical functions. It features a variety of functions including calculus capabilities, a programmable interface, and a clock, calendar, and USB connectivity for added convenience. This model, from the trusted brand Texas Instruments, offers a comprehensive set of tools for solving complex equations and graphing functions efficiently.
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