MODEL- CFX-9850GPLUS VENDOR- CASIO FEATURES- Color Power Graphic Calculator- Black finish * Large 8 line by 21 character, 3 color display. * Standard calculations with both real and complex numbers. * Advanced functions available through on-screen, soft-key menus. * Calculations performed with numbers or lists of numbers. * Graph rectangular, polar and parametric equations in 3 colors. * Up to 20 functions can be stored, graphed and analyzed at the same time. * 6 Graph memories store complete function lists for up to 140 functions. * Graphs inequalities using shading, and calculates points of intersection. * Graphs of different types may be graphed on the same axis for discussion. * Functions can be graphed either sequentially or simultaneously. * 16 Zoom features including storage of 6 user defined view windows. * Create a table of values from given functions, and generate plots and graphs from tables of values. * Graphic solver finds roots, intersections, intercepts, minima, maxima, and integrals of graphed functions. * Dual screen shows two graphs, graph and zoom, or graph and table on the same screen. * Graph to table feature generates tables directly from graphed functions. * Overwrite graph shows functions with variable coefficients for comparison. * Graph functions over user defined intervals to examine piecewise continuity. * Matrix calculations with up to 26 matrices. * Calculate matrix inverses, determinants, as well as transpose, augment and perform elementary row operations on matrices. * Single and double variable list-based statistics calculations and linear, quadratic, cubic, quartic, logarithmic, exponential and power regressions. * Single and double variable statistics graphing including box and whisker plots (both mean and median type), histograms, scatter plots, X-Y lines, broken lines, median-median lines and regression curves. * Calculates and graphs normal distribution values and curves. * 3 Statistical graph memories store graph definitions. * List editor creates, edits and manages 36 separate data lists. * Data can be exchanged between list, matrix and table modes. * Animated, dynamic graphing of equations with variable coefficients. * Create tables of values, graphs and cob web plots from recursively defined sequences and summations. * Sketch feature draws lines, points, horizontal lines, vertical lines, circles and tangents and normals on any display. * First and second derivative calculations and graphing, with automatic first derivative tracing. * Graph and investigate properties of standard Conic Sections (parabola, hyperbola, circle, ellipse) such as focus, asymptote, axis of symmetry, slope, length of latus rectum, directrix and radius. * Solve for real and complex solutions to systems of up to 6 simultaneous equations or quadratic and cubic polynomials. * Compatible with EA100 for collecting and analyzing real world data. * Up to 38 Programs can be stored with size only limited by available memory. * Basic-like programming language includes conditional (if, then else) jumping (goto, label) and loop (for, while) commands. * Communications port for linking to a PC, another CFX-9850GPLUS or EA100. * 32KB of memory available. Constant memory is maintained even when the unit is turned off. * 6 Function memories store commonly used functions for use in all applications. * Last answer recall memory plus 26 independent variable memories. * Powered by 4 AAA batteries and 1 lithium backup battery to preserve memory. * Comprehensive guidebook and batteries included. * Hard plastic keys and slide case resist abuse. * Three-year limited warranty. * Up to 6 pictures can be stored and used as backgrounds for comparing graphs. * User-defined choice for calculating numerical and graphical integration of either Gauss-Kronrod method or Simpson's method. The Gauss-Kronrod method is the default setting. * Single and double variable list-based statistical calculations and linear, median-median, quadratic, cubic, quartic, logarithmic, exponential, power, logistic and sinusoidal regressions. * Delta List feature