The Texas Instruments TI-89 Black Graphing Calculator is a handheld device powered by batteries, featuring regular key size and display. It is designed for graphing and calculus functions, making it an ideal tool for students and professionals in various fields. Manufactured by Texas Instruments in China, this unit is sold for parts or repair only. Perfect for those familiar with the TI-89 model, this graphing calculator offers a reliable and efficient solution for complex mathematical calculations.
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