Texas Instrument TI73Explorer Handheld Calculator Blue * Compatible with the Calculator-Based Laboratory (CBL) and Calculator-Based Ranger (CBR) Systems to allow collection and analysis of real-world data * I/O port for linking and data collection * Large 64 x 96 pixel screen * 8-line x 16-character LCD display is easier to read * Stacked fractions * Seven statistical plots: pictographs, pie charts, bar charts, and more * Scrollable home screen * Four constant features * English and metric conversions * More advanced functions accessed through pull-down menus * 14-digit accuracy displayed to 10 digits with 2-digit exponent. * Up to seven graph styles: thin, thick, animate, animate with path, and more * User-defined list names, stores up to 999 elements * Thirteen zoom features * Function elevation table * List-based one and two-variable statistics including linear, quadratic, exponential, med-median, and manual-fit regression models * Three statistical plot set-ups * Interactive equation solver * Alphabetical catalog of all calculator operations in one menu * Programming capabilities * Display indicates when fraction can be simplified * Shows common factor used during simplification * Enter your own factor during simplification * Change improper fractions to mixed numbers * Simplifies fractions and performs fraction/decimal conversions * Combinations and permutations * Random number generator * Trigonometry * Logs and antilogs * Convert angles from degrees to radians * Fixed decimal capability * AOS: x and / before + and - * Impact-resistant slide case * Powered by four AAA batteries with lithium backup (not included)