3-D Rotation and Contour Plots
Real-time rotation of 3-D surfaces and contour graphs help you visualize in 3-D.

Units of Measure
Use units in equations, symbolic computations, and unit conversions. Select from 20 constants and over 100 units. Create and store your own custom units.

Systems of Equations
Solve systems of linear and nonlinear equations. Display results in general or matrix formats.

Programming
Programming options include custom menus, dialog boxes, and pop-up windows. User-defined functions extend built-in functionality.

Catalog of built-in functions
The catalog provides syntax listings for every command and function.

Compatibility
The TI-89 Advanced Mathematics Software is identical to the TI-92 Plus Advanced Mathematics Software without the Geometry application. The TI-89 ViewScreen calculators work with the TI-92 ViewScreen panels. Data and programs will transfer directly to and from a TI-92 Plus using the included unit-to-unit link cable.

Input/Output Port
Link with other TI-89 or TI-92 Plus handhelds, CBL™ and CBR™ data collection devices, and computers.

Enhanced with Flash technology, this handheld technology gives you the flexibility to add calculator software applications and additional functionality, providing long-term value.

Advanced Mathematics Software
Includes a Computer Algebra System (CAS) enabling you to manipulate mathematical expressions and functions (factor, solve, differentiate, integrate, and more). Also includes differential equations, 2-D graphing and data analysis, 3-D graphing with rotations, linear algebra, interactive numeric solver, constants, unit conversions, statistical regressions, and optional assembly language programming.

Computer Connectivity with TI-GRAPH LINK™
TI-GRAPH LINK is your link to upgrading and adding software to your TI handheld. This software and cable (sold separately) also allow for transferring your files and data between the calculator and computer.

Key functionality for mathematics and engineering:

Calculator Software Applications (APPS) and Electronic Upgradability
Load powerful APPS on your TI-89 to enhance its basic functionality. Calculus, Statistics, and Engineering software is available.
Extend the life of your TI-89 by electronically upgrading software as new functionality becomes available. TI-GRAPH LINK™ accessory needed to upgrade software.

Pretty Print
Mathematical expressions appear on the display the same way as they are written on the board or in textbooks.

Over 500K of Memory
Contains about 188K user-available RAM and 384K of user data archive for storing functions, programs, and data. Advanced Mathematics Software 2.03 enables 702K of Flash ROM for calculator software applications and user data archive.

High Resolution Display
100 x 160 pixels on a high-contrast display allows easy viewing of information. A new screen technology and layout make the display easy to read.

Symbolic Manipulation
The CAS built into the TI-89 allows you to evaluate mathematical expressions symbolically or numerically.

Differential Equations
Compute exact symbolic solutions to many 1st- and 2nd-order ordinary differential equations.
Solve single or systems of differential equations using Euler or Runga Kutta methods.Graph slope fields or direction fields.

Linear Algebra
Find eigenvalues, eigenvectors, functions of matrices (like e A ), and LU or QR decompositions.

Split Screen Mode
Split screens allows you to view 2 applications at the same time.