Tested and working great! The Texas Instruments TI-89 Titanium Graphing Calculator is a powerful tool designed for students, professionals, and anyone in need of advanced mathematical capabilities. With its battery power source, this graphing calculator allows for convenient use without the need for constant access to a power outlet. The model, Texas Instruments TI-89, is known for its reliability and functionality, making it a popular choice for those seeking a high-quality calculator for their work or studies. Although it may not come with a cover, the TI-89 Titanium is a valuable asset for anyone in need of a dependable graphing calculator.
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