Graph on with the Texas Instruments TI-89 Titanium Advanced Graphing Calculator. This is Texas Instrument's most powerful graphing calculator and it comes in an attractive titanium color. The large 100 x 160 pixel display is perfect for graphing. The 188 KB of Ram and 2.7 MB flash memory mean plenty of speed and storage. This powerful, advanced graphing calculator handles all your basic math functions, plus you can create animations and 3D graphing and rotations too. This is a must have for an engineering college student, high-level calculus, physics or algebra student. Solve advanced statistics, linear and nonlinear equations with this amazing tool. Differential equations can be solved numerically, symbolically or graphically and include slope and directional fields. It also handles physical constants, unit conversions, vector, matrix, eigenvalues and eigenvectors calculations like a pro. The TI-89 easily calculates derivatives and integrals, limits, sequences and series. This calculator comes with an EE Pro application for electrical engineers too. Its Usb connection makes file sharing easy with other calculators and computers. Battery is included.