You are bidding on a Casio Color Power Graphic CFX-9850G Calculator.  This item works great, but does not come with batteries.  The following is the information from the Wikipedia article.  If you like this item, you will love the other items I have for sale on eBay RIGHT NOW!  Check out my other items now!

The screen's graphics resolution is 128 dots by 64 dots (the first row and column of dots are unusable in graphing), and its character resolution is 21 columns by 8 lines. The bottom line is reserved for function key menu tips, and the rest is available for the graphics and character display.

The screen is capable of three colors: orange, blue and green, apart from the 9750 models which have a black and white display. The colors are handled separately on three planes (orange is "above" blue which is "above" green), allowing to add or remove orange graphics without affecting the image below.

Memory

The calculators come with 32 or 64 kibibytes of inbuilt memory depending on the model. This is flexibly divided among storage blocks for programs, statistics, matrices, lists, static and dynamic graphs and their associated settings, functions, recursions, equations, financial data, and variables (all of which are global). These can be cleared individually or completely in the MEM menu.

Software Library

The CFX-9850GB PLUS and CFX-9950GB PLUS models have a built-in software library, consisting of programs that perform complicated calculations and data processing. For example, operations on differential equations, digital caliper measurements, capacitor charge curves, figure rotations and Riemann sums. These are organized into six sub-libraries, five of them for mathematical computations, and one for scientific instrumentation.

Graphing

Graphs can be drawn with split-screen viewing of graphs as well as tables or zooms. Graphed areas can be shaded in customizable colors. The graph viewport can be resized and shifted (these settings can be saved for later retrieval), and points along the graph curves can be traced. Graph solver tools can also be used to find useful points, such as maxima/minima and intersection points. The calculator also has a special section for advanced conic section graphing. Dynamic graphing provides all the functionality of regular graphing, but allows the binding of a variable in the graph equation to time over a value range.

Lists and tables

Up to 36 lists can be stored and manipulated in various ways in the list manager. The lists can be also be used to feed data into inbuilt statistics operations, producing various statistical figures, performing regression analysis, and generating graphs like scatter and box and whisker plots, among others. Tables can be generated from functions, recursive series can be generated, and equations can be solved - both simultaneous and polynomial.

Financial calculations

A number of financial operations such as interest compounding and amortization are also provided.