Price - £163.41

(Texas Instruments) Advanced CAS & Graphing Calculator(TI-89 Titanium) Introducing TI's most powerful graphing calculator The TI-89 Titanium, offering new features, preloaded Apps, and even more versatility. A built-in USB port makes data transfer ultra-convenient. Plus, with three times the memory of the TI-89, you can store more Apps, data, and programs. The TI-89 Titanium's advanced functionality and 3-D graphing make problem-solving for AP advanced mathematics and engineering courses infinitely easier. It's the most powerful TI graphing calculator allowed for use on the AP Calculus, AP Statistics, AP Physics, AP Chemistry, PSAT/NMSQT, SAT I , SAT II, and Math IC & IIC exams. Features; - Electronically upgradeable graphing calculator gives you the most up-to-date functionality and software applications (Apps). - 188K Bytes of user-available RAM . - 2.7 MB of user-available Flash ROM for data archive and Apps (3x the Flash ROM memory of the TI-89). - 100x160 Pixel display . - Internal Clock with date and time display. - Icon Desktop that allows easier access to Apps and editors. - USB Port for computer connectivity, unit-to-unit communication with TI-89 Titanium graphing calculators, and more. - I/O Port for communication with other TI products. - USB unit-to-unit link cable included. - TI Connectivity Cable included. - Included Apps: - Cell Sheet. - EE Pro. - Finance. - French Localization. - German Localization. - NoteFolio. - Organizer. - Polynomial Root Finder. - Simultaneous Equation Solver. - Spanish Localization. - Statistics with List Editor (English, French, German and Spanish versions) - Study Cards. - Symbolic Math Guide. - Advanced Mathematics Software functionality is suitable for college mathematics and engineering coursework. - Pretty Print shows equations and results with radical notation, stacked fractions, and superscript exponents. - Active Calculator Home history screen can hold up to 99 previous entries for deep recall. - Real and complex numeric results. - Symbolic manipulation for algebra, calculus and differential equations. - Over 100 symbolic units in 28 categories for use in equations, computations, and unit conversions. - 20 stored constants with symbolic units for scientific calculations. - Graphs functions, parametric and polar equations, recursively-defined sequences, 3-dimensional surfaces, and differential equations. - Up to 99 graphing equations defined and saved for each graphing mode - Numeric evaluation of functions in tables and data variable format. - Interactive analysis of function values, roots, maximums, minimums, integrals, derivatives, intersections, inflection points, and arc lengths. - Recursively-defined sequences access any number of previous terms. - Slope and direction fields for exploring differential equations. - RK and Euler numeric differential equation solving methods. - Real time rotation of 3-D surfaces. - List-based one- and two-variable statistical analysis, including ten regression models . - Statistics plots including scatter, xy-line, box and modified box plots. Histograms and regression lines are available. - Matrix operations including inverse, determinant, transpose, augment, elementary row operations, and reduced row echelon form. Matrix elements can be real or complex and numeric or symbolic . - Advanced matrix operations including eigenvalues, eigenvectors, LU and QR decompositions. - Column-logic expressions in data/matrix editor are retained for automatic recalculation when values change. - Interactive numeric equation solver. - Hexadecimal and binary operations and conversions. - Extensive programming capability with number and size of programs limited only by available memory. - 255 symbols in the character set including Greek, system, and international characters.