The TI-89 is a graphing calculator developed by Texas Instruments in 1998. The unit features a 160×100 pixel resolution LCD and a large amount of flash memory, and includes TI's Advanced Mathematics Software. The TI-89 is one of the highest model lines in TI's calculator products, along with the TI-Nspire.

Experience the versatility of TI-89 Titanium graphing calculator. 3D graphing—Built-in CAS—Preloaded apps. Perfect for advanced math, physics and engineering.

TI-89是德州仪器公司于1998年开发的一款图形计算器。 该图形计算器配有160×100像素分辨率的 液晶屏 和 闪存。 TI-89 Titanium作为TI-89的后继者于2004年夏天发布。

Solve equations symbolically; factor and expand variable expressions; complete the square; and find anti-derivatives, computer limits and exact solutions in irrational forms on a powerful CAS platform. Visualize and edit complex expressions.

The TI-89 Titanium guidebook by Texas Instruments provides detailed instructions and tips for using the graphing calculator.

2023年1月3日 · Main Difference of TI 84 Plus and TI 89 Titanium. We just want to point out that Texas Instruments released the 89 in the summer of 2004, a newer version of the 84 Plus that was released earlier in 2004. One other main difference between these two calculators is that the TI-89 can solve more equations and is much more powerful.

2025年1月29日 · Learn more about the history of the TI-89, its alternatives, and how to still buy one. The iconic Ti-89 Titanium Graphing Calculator by Texas Instruments, as of the beginning of 2025, is officially being discontinued.

The TI-89 Titanium graphing calculator features advanced functionality and 3-D graphing that makes problem-solving for AP*, advanced mathematics and engineering courses easier. Built-in Computer Algebra System (CAS) allows you to explore and manipulate mathematical expressions in symbolic form.