FREE: Texas Instruments TI-73 Explorer Graphing ViewScreen Calculator

The listing, Texas Instruments TI-73 Explorer Graphing ViewScreen Calculator has ended.

Here's a list of what this marvel can do:
Stacked fractions.
Seven (7) statistical plots: pictographs, pie charts, bar charts, and more.
Scrollable screen
Four constant features.
English and metric conversions.
Compatible with the Calculator-Based Laboratory (CBL2) and Calculator-Based Ranger (CBR) Systems to allow collection and analysis of real-world data
Applications available from TI, Sunburst Software, and others.
More advanced functions accessed through pull-down menus.
14-digit accuracy displayed to 10-digits with 2-digit exponent
Graphs up to 4 functions simultaneously
Send and receive lists and variables to and from other TI graph calculators (TI-82, TI-83, TI-83 Plus, TI-84 Plus) / Unit to Unit Link Cable included
Up to 7 graph styles: thin, thick, animate, animate with path, and more
User-defined list names, stores up to 999 elements.
13 zoom features
Function evaluation table
List-based one and two-variable statistics including linear, quadratic, exponential, med-median, and manual-fit regression models
3 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
Change improper fractions to mixed numbers.
Simplifies fractions
Fraction/decimal conversions
Combinations and permutations.
Random number generator.
Trigonometry
Logs and antilogs
Convert angles from degrees to radians
%, x?, 1/x, x, y?, xy, and x! button functions
Powered by 4 AAA batteries with lithium battery backup
32K bytes RAM with 25K user-available. 128K of application space (with OS v. 1.60)
TI-GRAPH LINK software accessory allows information to be transferred to a computer and printed or stored on disk
Large 64 ? 96 pixel screen