The Texas Instruments TI-89 Titanium Graphing Calculator is a reliable and efficient tool for solving complex equations and graphing functions. With a regular display size and powered by batteries, this calculator is perfect for students and professionals alike. The included cover ensures protection when not in use, making it a convenient and durable option for everyday use. The model from Texas Instruments, known for its quality and accuracy, ensures trust in the performance of this graphing calculator.
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