Experience the power of Texas Instruments TI-89 Titanium Graphing Calculator - Black, the ultimate tool for solving complex math problems. This calculator is perfect for professionals and students alike looking to perform advanced calculations with ease. With a regular display size and powered by batteries, it is easy to take on-the-go and use in any setting.

Designed by Texas Instruments, this graphing calculator is perfect for business, industrial, and office settings. It boasts an array of features including a high-resolution screen, advanced programming capabilities, and compatibility with multiple software applications. From calculus and trigonometry to algebra and geometry, this calculator is sure to meet all your mathematical needs.