Texas Instruments TI-89 Graphing Calculator, 4 AAA Battery, 3-D Graphing, 3-1/3 in W X 9/10 in D X 7-1/2 in H, Titanium
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Texas Instruments TI-89 Titanium Graphing Calculator features 3-D graphing and real time rotation, contour and implicit plots. It has advanced graphic features for calculus, AP courses and university studies. Performs graph functions, parametric and polar equations, recursively-defined sequences, three-dimensional surfaces and differential equations. Includes USB cable, 2x more memory than the previous TI-89 and EE*Pro App for electrical engineering. Contains official AP calculus review questions on the enclosed product CD and computer algebra system. Offers 188K bytes of user-available RAM, 2.7 MB of user-available flash ROM for data archive and Apps, 100 x 160 pixel display, internal clock with date and time, 99 graphing equations, 20 stored constants with symbolic units for scientific calculations and 100 symbolic units in 28 categories for use in equations, computations and unit conversions. The 4 AAA batteries with a silver oxide battery backup protect RAM memory during main battery change.
- Permitted for use on many state and standardized tests