Calculators are designed for mathematical calculations. This includes graphing calculators. It is a handheld calculator capable of solving equations and plotting graphs, performing numerous variable tasks. The Texas Instruments TI-89 Titanium is one of the best graphing calculators ever to hit the market today.

A graphing calculator is an electronic device used in performing mathematical calculations such as solving equations and plotting graphs. It is programmable, allowing the user to create customized programs for education and scientific/engineering applications.

A graphing calculator can provide several calculations and text lines at the same time. Some have color displays, while others include 3D graphing. The TI-89 Titanium is one of the model graphing calculators popularly used today.

The TI-89 Titanium has a powerful computer algebra system developed by Texas Instruments. This allows the manipulation of symbolic algebraic expressions, where in, it solves the equation in terms of variables.

Hence, the TI-89 Titanium is a replacement of the TI 89 which was released during the summer of 2004. It has four times the ability of the TI 89, especially with regards to its flash memory. More Apps, programs and data are being stored. Thus, the TI-89 Titanium is necessarily a Voyage 200 without an integrated keyboard.

Features:

o TI-89 Titanium handles algebra, calculus, matrices, and statistical functions.

o RAM: 188 KB

o Flash Memory: 2.7 MB

o Pixel Display: 100 by 160 large pixels (split screen view)

o Power: 4 AAA Silver Oxide batteries

o Units: More than 100 in 28 categories

o Stored constants: 20

o 255 symbols in the character set (Greek, system, and international characters).

o Real time rotation- 3D surfaces.

o File sharing with the used of USB on-the-go technology.

o Optional assembly language programming

o Has a 3-D rotation and contour plots.

o Active Calculator Home history screen - can hold up to 99 previous entries for deep recalling purposes.

o Graph mode can stored up to 99 equations for each mode.

o Real and complex numeric results.

o Catalog includes syntax listing of functions and commands.

o With a pre-programmed applications such as CellSheet, Calendar, EE Pro, Contacts, German Localization, Finance French Localization, Planner, Notefolio, Polynomial Root Finder, Simultaneous Equation Solver, Statistics with List Editor, Spanish Localization. Symbolic Math Guide, Study cards and Tasks.

o Analysis: Function values, maximums, roots, minimums, derivatives, integrals intersections, arc lengths, and inflection points.

o Official AP Calculus exam review questions.

o Impact-resistant slide case.

o Compatible with TI Keyboard.

o 1 year warranty

Accessories:

• Silver oxide battery, TI-Presenter , ViewScreen Calculator, Presentation Link Adapter, Applications CD-ROM, USB silver cable for Windows/Mac, TI Connectivity Kit, GraphiTI, TI Keyboard, user's guide, TI-link cable, colored hard slide case, Kickstand Slide Case and warranty info.

Other available applications for TI-89 Titanium are:

• Calculus Made Easy

• Cabri Geometry

• Calculus Tools App

• DataMate App

• EE200

• Polynomial Root Finder App

• TI-Reader App

• The Geometer's Sketchpad

• LogIn App

• US Presidents App

• ME*Pro App

• LearningCheck App

School Used

The TI-89 Tritium, along with the other series, is one of the most function-rich and powerful graphing calculators which can be legally used in many testing situations. It is also allowed on:

• AP Calculus

• AP Physics

• AP Statistics

• PSAT/NMSQT

• AP Chemistry

• Math IC and IIC

• SAT I and II

The TI-89 Titanium's advanced functionality helps students, particularly in engineering and mathematics in doing problem solving with ease. Many high school teachers encourage their students to use graphing calculators within the Canadian and American education system. Thus, students tend to buy the TI-89 Titanium because of its game compatibility.

The TI-89 Titanium has really gone a long way. It is more reliable due to its advanced capabilities and its simplified methods. Texas Instruments tend to upgrade the TI technology more over the years, especially focusing on its fully featured functionality for the modern day computing.